Friday, 5 June 2026

A spine surgeon reveals how to distinguish sciatica from regular back pain

From msn.com/en-us

By Kelsey Kryger

Sciatica is a growing problem, with up to 40 percent of people experiencing it at some point in their lives. While it's often lumped in with general back pain, sciatic nerve pain goes a bit further. In fact, about 5 to 10 percent of people dealing with low back pain actually have sciatica. The condition causes a sharp, radiating pain that starts in the lower back and travels down the leg, making it difficult to sit, stand, or walk comfortably. 

"The terms low back pain and sciatica are often used as interchangeable terms, but they describe different problems," says Paul Gause, M.D., an orthopaedic spine surgeon at Spine Institute of Arizona. "There are a multitude of conditions that can cause compression or irritation of nerves in the spine, but the result is the same: pain radiating down your leg."

We tapped Gause to learn more about what causes sciatica, symptoms to watch for, and when it's time to seek medical attention. If you're dealing with such pain, understanding the source of your symptoms could be the first actionable step towards finding relief.

What is Sciatica?

Sciatica is nerve pain from an injury or irritation to your sciatic nerve, which is the longest nerve in the body. Many conditions can result in sciatic nerve pain, but the most common is a herniated disc, which occurs when the soft inner portion of a spinal disc pushes through its outer layer and presses on a nerve.

Spinal stenosis is another common cause of sciatic nerve pain, which is a degenerative narrowing of the spinal canal that puts pressure on nerves. Spondylolisthesis is another condition where one vertebra slips out of place and pinches nearby nerves. A less common cause is piriformis syndrome, where a muscle in the buttock compresses the sciatic nerve as it travels down the leg.

Sciatica Symptoms

The main symptom of sciatica, Gause says, is leg pain. Because the sciatic nerve is irritated or compressed, people may also experience numbness, tingling, or muscle weakness along the affected side. Above all, duration of symptoms should be paid close attention to. Often, the causes of sciatic nerve pain heal themselves, but symptoms lasting longer than a month without improvement should be evaluated by a healthcare professional.

"I generally worry more about nerve dysfunction and particularly, weakness," he adds. "It’s not that pain is unimportant to treat, but weakness, particularly if severe or progressive, can lead to a permanent loss of function in the affected leg."

Low Back Pain vs. Sciatica

Low back pain is a common experience for many, with a multitude of underlying conditions, including muscle soreness, injuries, and even degenerative changes of ligaments, joints, or discs. Low back pain is usually an achy, stiff, or tight feeling that is isolated to the lower back area. It may radiate slightly to the buttock, but it doesn't radiate down the leg.

Sciatica, on the other hand, is when someone experiences pain along the distribution of the sciatic nerve, which runs from the buttocks down the posterior thigh and into the lower leg, usually affecting one side. Back pain can be a component of sciatic nerve pain, but the main symptom is usually a sharp, burning, or shooting sensation down the leg, often down to the foot.

"A useful question to ask yourself is: 'Is the pain staying in my back or is it traveling down my leg?' If it's radiating down the leg, particularly below the knee, then you're likely experiencing sciatica," Gause says.

Sciatica Treatment

Sciatic nerve pain can be intense, but treatment with medications and physical therapy can help diminish the severity of pain while the back tries to heal. The time to seek immediate medical care, however, is if the pain is accompanied by significant or progressive leg weakness, loss of bowel or bladder control, or numbness in the groin or saddle area. A new loss of bowel or bladder control can be permanent if not treated right away.

"Associated symptoms can also be an important red flag to seek urgent care," Gause adds. "Sciatic nerve pain in someone with a history of cancer, with significant fevers or chills, or with unexplained weight loss should be evaluated right away. If the pain is a result of a significant fall or trauma, it's best to seek more urgent care."

https://www.msn.com/en-us/health/other/a-spine-surgeon-reveals-how-to-distinguish-sciatica-from-regular-back-pain/ar-AA24Fv9N?cvid=6a21622225694a1d83611038566498e9&ei=11

Wednesday, 3 June 2026

Sciatica acting up? These self-care treatments calm lower back pain fast

From msn.com/en-us

By Kara Wahlgren and Ann Green 

When you're in the middle of a sciatica flare-up, your top priority is getting relief ASAP. Sciatica is a type of pain that travels along the sciatic nerve, which runs from the lower back through the heel of each foot. When there's excess pressure on this nerve, it can cause a tingling, burning or shooting sensation that radiates from the lower back through the buttock or leg. While the pain can be debilitating, the good news is that up to 95 percent of people recover within a year without surgery, according to French research. And you can speed up healing with these simple sciatica self-care strategies.

AsiaVision/Getty

5 sciatica self-care tips to ease pain

In addition to physical therapy or any treatment your doctor recommends to provide relief from pinched nerves, consider these simple sciatica self-care remedies you can do at home to feel better faster. 

Take a slow walk

Sciatica can make you want to curl up in a ball on the couch. And it's okay to rest when the pain is unbearable. But as soon as you can tolerate it, gentle movement can help improve blood flow and mobility. Exercise also triggers the release of feel-good endorphins.

"While short periods of rest are helpful during sciatica flare-ups-particularly when the pain is severe enough to limit mobility-ongoing periods of rest lead to muscle stiffness and weakness, which can actually worsen sciatica discomfort," says Jennie Stanford, MD, a family medicine physician and medical contributor for Drugwatch. "Gentle exercise can improve pain and mobility."

In fact, a review published in the European Spine Journal suggests that walking may be just as effective as surgery for easing long-term sciatica pain from a herniated disc. And here's incentive to keep it up even after you heal: Researchers reporting in JAMA Network Open found that people who walked a total of 100 minutes a day had a 23 percent lower risk of lower back pain than those who walked 78 minutes. Better yet, walking daily helped no matter how slow or fast they strolled. (Get more tips to ease lower back pain.)

Alternate between hot and cold

When sciatica first strikes, cold packs are a self-care strategy that can help numb the area and get you through the worst of the pain. Apply an ice pack to your lower back for 20 minutes at a time, two or three times a day. (Be sure to put a cloth layer between the ice and your skin to prevent frostbite while taming sciatica symptoms.)

After a day or two, apply heat to promote healing. "Muscle spasms around the inflamed sciatic nerve are common," Dr. Stanford explains. "Heat specifically helps promote muscle relaxation and improves pain that way. Heat may also improve blood flow to those muscles, reducing discomfort." She recommends people with sciatica use a heating pad on a low to medium setting for 15 to 20 minutes at a time. 

No heating pad handy? Sink into a warm bath instead to ease painful areas. A Taiwanese study suggests that heat may reduce inflammation, easing sciatica-like nerve pain. Not only that, the gentle warmth relaxes tense muscles that can make pain worse. Plus, moist heat penetrates deeper than dry heat, according to Loma Linda researchers.

Pay attention to your posture

Poor posture can compress the spine, putting pressure on the sciatica nerve. So it's important to be mindful of your posture, especially if your job requires you to be standing, bending or sitting for long periods at a time. "Improving posture when you are active and at rest can help with spine alignment and related sciatica," Dr. Stanford says.

There are three natural curves in your spine: your neck, the middle of your back and your lower spine. When you're sitting or standing, take stock to make sure you're not bending any of these beyond their natural curve (like slouching at your desk or looking down at your phone). If your job requires you to stand in one spot or sit behind a desk, be sure to take walking breaks or do some gentle stretches for a few minutes every hour as part of your sciatica self-care routine.

Stretch your legs

Gentle stretching is an important part of your sciatica self-care routine, as it can improve blood flow and mobility. Stretching also helps to maintain a healthy spine, lessening your risk of future flare-ups. 

"Stretching exercises should focus on the surrounding muscles, like the gluteus maximus and minimus, piriformis, hamstrings and other hip flexor muscles," Dr. Stanford says. In particular, she recommends the Cat-Cow and Child's yoga poses to release tension in the lower back. (Check out our primer on proper Child's Pose, plus five more stretches to ease sciatica pain.)

One area you might want to pay special attention to: tight hamstrings, which can strain your lower back and irritate the sciatic nerve. Fortunately, just five minutes of stretching three times a week eased pain by 61 percent in three weeks, according to a Korean study. Start by lying on your back, then lift one leg up toward the ceiling (keeping your leg straight) and use a towel to gently pull your foot toward you for 10 seconds. Repeat five times per side.

Tip: Dealing with stubbornly-tight muscles in your legs or glutes? Ask your doctor about using a percussive massager, such as the Rally Orbital Massager, to help relax overworked muscles.

Consider OTC pain relievers

"Anti-inflammatory agents are likely to be most effective for sciatica-related discomfort," Dr. Stanford says. These can include non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen and naproxen sodium, or topical pain relievers like diclofenac gel. Consider adding them to your sciatica self-care routine.

If sciatica self-care remedies aren't enough, call your doctor

If these home treatments aren't bringing enough relief from your sciatica pain, it may be time to talk to a healthcare provider. Your doctor can help determine what's causing your sciatica (such as a herniated disk or bone spurs) and rule out any other underlying conditions. 

If your sciatica is recurring, a physical therapist can recommend exercises to improve strength and mobility in your lower back. If you experience any worrisome symptoms, like a fever, numbness is your legs or loss of bladder control, seek emergency care.

https://www.msn.com/en-us/health/other/sciatica-acting-up-these-self-care-treatments-calm-lower-back-pain-fast/ar-AA1Vwzw4?cvid=6a1ee549502e459a9d5637e8cad4debe&ei=7

Monday, 1 June 2026

Is it just 'normal' back pain or sciatica? Warning signs you shouldn't ignore

From theweek.in

By Sakshi Srivastava

Experts warn that tingling, numbness, and leg pain may signal nerve compression 

Highlights

  • Sciatica is one of the most common nerve-related conditions linked to lower back problems

  • It is painful nerve condition that can quietly interfere with daily life, mobility, sleep, and even mental well-being

  • It occurs when the sciatic nerve becomes irritated or compressed, triggering pain that radiates from the lower back through the hips and down the legs


Have you ever noticed someone walking unevenly, struggling to sit comfortably, or suddenly pausing mid-step because of a sharp pain shooting down their leg? What many dismiss as “normal back pain” could actually be sciatica - a painful nerve condition that can quietly interfere with daily life, mobility, sleep, and even mental well-being.

Sciatica is one of the most common nerve-related conditions linked to lower back problems. It occurs when the sciatic nerve - the longest nerve in the body - becomes irritated or compressed, triggering pain that radiates from the lower back through the hips and down the legs. For some, the pain feels like a mild ache. For others, it can be burning, electric, or severe enough to make standing or walking difficult.

Globally, low back pain affected nearly 628.8 million people in 2021, according to estimates published in The Lancet, and sciatica remains one of its most frequent nerve-related complications of low back pain. 

To understand why sciatica is becoming increasingly common, what symptoms should never be ignored, and how the condition can be prevented or managed before it becomes debilitating, we spoke to Dr Ravi Sankar Kirubanandan, Senior Consultant - Orthopaedics, Kauvery Hospital, Vadapalani, Chennai.

What exactly is sciatica?

According to Dr Ravi Sankar Kirubanandan, Senior Consultant – Orthopaedics, Kauvery Hospital, sciatica refers to pain caused by irritation or compression of the sciatic nerve - the largest nerve in the human body that runs from the lower back through the buttocks and down each leg. 

He explained that while sciatica is often mistaken for ordinary back pain, the condition can seriously affect a person’s mobility, sleep, concentration at work, and overall quality of life if left untreated. “Sciatica is often confused with normal back pain, but it can significantly impact daily life,” he said. Although the condition affects both men and women, Dr Kirubanandan noted that women may be more vulnerable because of hormonal changes, pregnancy-related stress on the body, and certain musculoskeletal conditions.


Symptoms people should not ignore

Dr Kirubanandan explained that sciatica pain usually begins in the lower back or buttock region and radiates down one leg following the path of the sciatic nerve. Many patients experience tingling sensations in the legs or feet, weakness or numbness in the thighs, legs, or toes, and even muscle weakness that can make standing or walking difficult. 

He added that prolonged sitting often worsens the pain, while some individuals describe sudden electric shock-like sensations while moving. “Some patients struggle to stand up after sitting for long periods or feel severe pain while walking,” he said. 

In more serious cases, sciatica may even lead to bladder or bowel control problems, which he stressed should never be ignored and require immediate medical attention. Unlike regular lower back pain, he pointed out that sciatica usually affects only one side of the body and follows a distinct nerve distribution pattern, helping doctors identify the condition clinically.

Sciatica in women

According to Dr Kirubanandan, sciatica affects both men and women, but certain biological and lifestyle-related factors may make some women more vulnerable during different stages of life. Pregnancy, for instance, can sometimes contribute to sciatic nerve irritation due to weight gain, pelvic joint changes, and increased pressure on surrounding nerves. 

He also noted that “prolonged use of high heels may affect posture and spinal alignment, placing additional stress on the lower back.”

Women with certain pelvic-related conditions may experience nerve irritation more easily, while hormonal changes during menopause can gradually contribute to bone and muscle loss, increasing the risk of spinal degeneration and back-related problems over time. 

Treatment, prevention, and when to seek help

Dr Kirubanandan explained that sciatica can develop due to several underlying conditions, including herniated or slipped discs, degenerative disc disease, spinal stenosis, piriformis syndrome, obesity, poor posture, heavy lifting, sudden twisting movements, and physical inactivity. 

However, he stressed that not every case requires surgery or prolonged bed rest. “Not all sciatica requires surgery and not all sciatica requires bed rest,” he said. Treatment often involves posture correction, physiotherapy, heat or cold therapy, muscle relaxants when necessary, and lifestyle modifications such as weight management and regular exercise.

He added that “stretching and strengthening exercises can play an important role in both treatment and prevention. Activities such as hamstring stretches, pelvic tilts, Cat-Cow stretches, knee-to-chest stretches, walking, gentle yoga, and core stability exercises may help improve flexibility and spinal support.”

However, he advised that exercises should ideally be performed under professional supervision, especially during episodes of severe pain. Dr Kirubanandan warned that ignoring sciatica for prolonged periods can result in irreversible nerve damage and may eventually require more complex surgical intervention. He recommended timely medical evaluation, including MRI scans when needed, so that patients can receive appropriate treatment before permanent complications develop.

https://www.theweek.in/news/health/2026/06/01/is-it-just-normal-back-pain-or-sciatica-warning-signs-you-shouldnt-ignore0.amp.html

Thursday, 28 May 2026

Sciatica, when the longest nerve in the body decides to make itself felt (and how to put it back in place)

From lamilano.it

There's a pain that affects many people and is hard to ignore. It starts in the lower back, passes through the buttocks, and travels down the leg in a precise, almost stubborn path, even to the feet. Sometimes it burns, sometimes it stabs, sometimes it feels like an electric shock. It's what is commonly referred to as sciatica. "So-called sciatica (more correctly, lumbosciatica) is one of the most common, yet most misunderstood, spinal conditions," says Luca Proietti, associate professor of Orthopaedics and Traumatology at the Catholic University of the Sacred Heart and director of the Spinal Surgery Unit at the A. Gemelli IRCCS University Hospital in Rome. "The first misunderstanding to clear up is precisely this: sciatica is not a disease, but a signal. It's the body's way of warning you that something is irritating or compressing the sciatic nerve, the longest nerve in our body." 

What is sciatica? "To truly understand sciatica, you have to imagine this nerve as a long biological highway that starts in the lumbar region, passes through the pelvis, and runs down the leg to the foot. As long as everything is functioning properly, its work remains invisible. But," explain the Gemelli specialists, "when something interferes (compression at its exit from the spine, inflammation, a narrowing of the spinal space), the nerve 'protests,' and it does so very clearly. The pain traces the path of the nerve fibres with surprising precision, so much so that many patients can pinpoint their exact route." 

It is precisely this characteristic that distinguishes sciatica from common back pain. Often, in fact, the most intense pain is not localized in the back (in the lumbar spine), but along the leg. It can begin as a discomfort in the buttock and develop into a sharp pain that travels down the thigh, sometimes to the calf or foot. This—as experts describe—can be accompanied by tingling, numbness, and, in the most severe cases, a feeling of weakness that makes leg movement uncertain and makes walking difficult, reducing walking autonomy. Another distinguishing feature is that "the pain tends to affect only one side of the body, almost as if the nervous system were telling its story from only one direction. But even in this case, there are exceptions, and sciatica can also be bilateral." 

The origin of the problem

But if the pain manifests in the leg, the problem often stems elsewhere. In most cases, the cause is in the spine. "It can be linked to a bulging or ruptured intervertebral disc (as in a herniated disc)," explains Proietti, "compressing a nerve root; the same can happen in spondylolisthesis (vertebral instability). In other cases, the progressive narrowing of the spinal canal, perhaps due to osteoarthritis, reduces the space available for the nerves. Scoliosis, too, by causing spinal deformity, can lead to sciatica, which develops slowly over years; its onset is more immediate in cases of vertebral fractures, even pathological ones (related to tumours). There are also situations in which the disorder does not originate in the spine, but rather in muscular structures, as in the case of the piriformis muscle, or from poor daily habits: postures held for too long, repetitive movements, or improperly performed efforts." 

Precisely because of this variety of causes, diagnosis cannot be relied on intuition or a search on Doctor Google or Doctor ChatGpt. "Understanding the origin of the pain," Proietti explains, "requires a thorough clinical approach, starting with listening and observation. A specialist examination allows us to assess how the pain is distributed, how the body reacts to movement, and the state of muscle strength and reflexes. Instrumental tests, such as MRI, are an important aid, but they should not be performed immediately: they should only be performed when the clinical picture requires it, to confirm and further investigate what emerges from the specialist medical evaluation or a simple X-ray of the lumbar-sacral spine." 

The key word: movement. One of the most surprising and almost paradoxical aspects concerns sciatica treatment. "When the pain is intense," Proietti emphasizes, "the patient's spontaneous reaction is to remain still, to rest completely. Yet, in most cases, prolonged immobility actually worsens the situation. Sciatica tends to improve more easily when the body continues to move, gradually and under supervision (perhaps by a good physical therapist). It's not about forcing, but rather preventing the spine from becoming stiff and the muscles from losing strength and elasticity. This is why physical therapy plays a key role: through targeted exercises, it helps restore balance, mobility, and function. Medications can be useful for controlling pain and inflammation in acute phases, but they alone are not the solution. Recovery requires a broader approach, which also includes correcting daily habits: avoiding sudden movements, alternating positions, and not overloading the back with incorrect movements." 

Surgery is only available for the most severe cases. Only in a minority of cases is more invasive treatment necessary. "When pain persists over time (beyond 20-30 days of conservative therapy) despite treatment, or when neurological deficits appear, such as a loss of leg strength detected by electromyography (EMG), surgery may be indicated. Modern techniques, such as minimally invasive micro-discectomy, now allow for targeted intervention, with rapid recovery times and early rehabilitation, allowing for a rapid return to mobility. The procedure is performed through a small incision; with the aid of a surgical microscope, the expelled disc fragment is then identified and removed to free the nerve root. In cases of spinal instability, stabilization procedures are used, using titanium screws and rods (sometimes it is also necessary to replace an intervertebral disc with a titanium support); in this case too, the procedures have become less invasive and more accurate." 

And there are also rarer but more serious situations in which the body sends out important warning signals. "The onset of difficulty controlling the bladder or bowel, marked leg weakness, or loss of sensation in specific areas requires immediate evaluation by a spine surgeon, as they may indicate a neurological condition, such as 'cauda syndrome,' which requires urgent treatment." 

The importance of a multidisciplinary approach. 

Although highly specialized, managing sciatica also requires a multidisciplinary approach, which also helps reduce the risk of complications. "This, we recall, was also the focus of a recent conference we organized at the Gemelli Hospital, 'Complications in Spinal Surgery,' which brought together neurologists and neurosurgeons, vascular surgeons, anesthesiologists, and abdominal surgeons." The future of spinal surgery "inevitably depends on a multidisciplinary approach," emphasizes Giulio Maccauro, full professor of Orthopaedics at the Università Cattolica del Sacro Cuore and director of the Orthopaedics and Traumatology Unit at the Gemelli Hospital. "Collaboration between different specialists today not only improves clinical outcomes, but also prevents and manages complications more effectively. It is precisely with this goal in mind that we have promoted dedicated opportunities for discussion and training, because shared cultural and scientific growth represents one of the most important tools for making treatments increasingly safe, personalized, and innovative." 

https://lamilano.it/en/by-the-media/Sciatica-when-the-longest-nerve-in-the-body-decides-to-make-itself-felt-and-how-to-put-it-back-in-its-place-the-point-with-the-specialists/ 

Saturday, 23 May 2026

Sciatica: What to Do for This Very Common Condition

From rush.edu

By Donna Fisher

If you’re experiencing pain, numbness or tingling in your legs, you’re not alone 

If you’ve felt pain shooting down your legs, you probably already know what sciatica is. It’s a very common condition with pain starting in the lower back and running down the leg. Or you may feel numbness or tingling.  

For some people, sitting makes it worse. For others, the pain increases when standing.

“Patients sometime think it’s a leg problem because they might experience the pain in their foot or calf,” says Thomas McGivney, MD, an orthopaedic surgeon at Rush. “But there’s nothing wrong with their leg.” 

Causes of sciatica

Sciatica is caused by damage to or pressure on the sciatic nerve, one of the two nerves in the leg. The longest, thickest nerve in the body, it is actually a bundle of nerves.

Of the many possible causes of sciatica, McGivney most commonly sees a ganglion cyst on the spine, the spine slipping forward (which is common in females) or a rupture of the fourth and fifth disc. Sometimes a person can experience a rupture a few days after they’ve hurt their back. 

“A disc is like a stale jelly donut,” he explains. “The rupture is in the hard outer part. The gooey stuff in the middle will push out through the rupture.” That can put pressure on the nerve and cause pain.


Treatment for sciatica 

The good news is that most of the time — 85%, he estimates — people with sciatica get better on their own within a year. “It heals without intervention, through nonoperative treatment,” he says.

Nonsurgical treatments include stretching or physical therapy, medication, spinal injections, and alternative therapies like yoga and massage. Some people can relieve their pain at home. Ice, heat and stretching can all help.

When a patient comes to him, McGivney may order a standing X-ray, which would show a slipped spine (when a bone in the spine slips out of place), or recommend therapy. If that doesn’t help, the next step is an MRI, which provides a three-dimensional image of the discs and nerves. 

Because he treats conservatively, he often refers patients to a physical medicine and rehabilitation physician who will use nonsurgical treatments — from physical therapy to cortisone injections — to help patients manage pain. Epidurals can reduce discomfort by decreasing inflammation. 

If those treatments are not successful, the final option is surgery to remove what is pinching the nerve. Studies show that surgery within three months of onset yields the best outcomes. So, if you’ve tried other treatments for four or five months and they haven’t been successful, McGivney recommends surgery.

You shouldn’t wait too long, he says, calling it a “catch-22.” The longer you wait, the longer the nerve is compressed and the less successful the surgery will be, he explains.  

“Once a nerve is damaged, it can’t be fixed,” he says. “We take pressure off the nerve and hope it heals.” 

What should you do and when?

McGivney recommends seeking treatment when sciatica pain is interfering with your life. Many of his patients with back pain come to him after going to the emergency room. Because they fear surgery, they delay seeking help. 

If you experience numbness or weakness, you should see a specialist and get an MRI, he advises. 

Knowing the cause of the problem is critical to finding the right treatment. If the problem is caused by arthritis, walking and exercises to strengthen the core are good. 

“But if walking and standing make it worse, you can’t walk or work out,” he says. That can lead to additional problems, like weight gain and high blood pressure. 

“Discovering where the nerve is pinched is crucial to knowing how to help it,” he says. “We need to find out what’s going on.”

https://www.rush.edu/news/sciatica-what-do-very-common-condition

Thursday, 14 May 2026

The four types of sciatica explained

From healthdigest.com

The importance of the sciatic nerve can't be understated since it's involved in our everyday actions, such as walking, standing, and running (via the Cleveland Clinic). For this reason, any problem with the nerve can impact even the smallest movement. One such issue is sciatica. It's uncomfortable pain due to intense pressure on the sciatic nerve. A 2022 review published in the journal StatPearls revealed that around 10% to 40% will develop sciatica in their lifetime.

According to Medical News Today, many people confuse sciatica with general back pain. However, sciatica isn't limited to the back. Sciatic pain usually spreads from the lower back, down to the buttocks and legs, explains Medical News Today. While the pain can range from mild aches to sharp burning sensations for some, the pain might feel like painful jolts or electric shocks for others (via the Mayo Clinic). 

Even though sciatica is common, there are different types, each coming with various causes and risk factors. Continue reading for more information on the different types of sciatica.

The four types of sciatica

                                                                                                         Studio Romantic/Shutterstock

There are four main types of sciatica, each being categorized by how long symptoms last and whether both legs are affected. They include acute sciatica, chronic sciatica, alternating sciatica, and bilateral sciatica. 

The factors contributing to acute sciatica vary and include smoking, height, age, and stress levels. According to a 2007 article published in the British Medical Journal, people with physically intensive occupations may be susceptible to the acute type of sciatica. Acute sciatica symptoms may last up to about six weeks and are characterized by lower back pain with pinching of the nerve as well as pain below the knee of one leg (via the American Family Physician).

According to Medical News Today, chronic sciatica is a long-term condition that causes continuous pain. Unlike acute sciatica, chronic sciatica lasts beyond three months and can disappear or reappear without proper treatment or lifestyle adjustments. 

While most sciatica cases involve one affected leg, the nerve pain associated with alternating sciatica can affect both legs simultaneously (via Spine Health). This type of sciatica is quite rare and often results in degenerative problems in the sacroiliac joint.

Bilateral sciatica is also rare and usually presents during exercise, as noted in a 2020 case study published in Cureus. The case involved a young athlete who experienced sciatic nerve entrapment to the popliteal fossa, the diamond-shaped space behind the knee joint. According to the study, this form of sciatica may lead to pseudo-claudication — characterized by pain, heaviness, and weakness when walking — due to compression of the spinal nerves in the lower spine (per Cleveland Clinic). 

Causes of sciatica

Despite the different types of sciatica, the condition is generally caused by a herniated disk or overgrowth in the spine, which results in a pinched nerve, according to the Mayo Clinic. Various other causes exist. One example is lumbar spinal stenosis. This condition narrows the spinal canal causing a compression of the sciatic nerve, per Johns Hopkins Medicine. Pregnant women can also experience significant pressure on their sciatic nerves owing to the shifting of weights and loosening of ligaments induced by pregnancy during the second and third trimesters (via Harvard Medical School Health).

Other possible causes of sciatica include spondylolisthesis and piriformis syndrome. Spondylolisthesis happens when one spinal bone moves over the other, causing a kink in the spinal canal and pressurizing the nerves. As for piriformis syndrome, this uncommon neuromuscular disorder causes muscles in the buttocks to tighten and irritate the sciatic nerve (via the Cleveland Clinic). According to the source, some sciatica cases are also linked to a serious condition called "cauda equina syndrome," which affects nerves at the end of the spinal cord, causing leg pain and numbness around the anus, and loss of bladder control. 

Although many cases of sciatica are acute, some are can be long-lasting. According to Medical News Today, certain risk factors, listed in the next section, can make it more likely for people to develop this chronic condition.