Sciatica Pain: Symptoms, Causes and When to See a Doctor

Sciatica is one of the most uncomfortable kinds of back-related pain. Many people describe it as a burning, shooting or electric pain that starts in the lower back or buttock and runs down the back of the thigh, sometimes all the way to the foot. Others feel tingling, pins and needles or numbness more than pain. Because the symptoms are felt in the leg, people are often surprised to learn that the problem usually starts in the lower spine.

The good news is that most cases of sciatica improve with time and the right care. Understanding what is happening can reduce fear and help you make sensible choices in the first few weeks.

What exactly is sciatica?

Sciatica is not a diagnosis on its own. It is a description of symptoms caused by irritation or compression of one of the nerve roots in the lower back that together form the sciatic nerve. This large nerve travels through the buttock and down the back of the leg, supplying sensation and strength to much of the leg and foot.

When a nerve root is irritated, the brain feels the pain along the path of that nerve. That is why a problem in the lower back can feel like a cramp in the calf or a burning feeling on the top of the foot.

Common symptoms of sciatica

• Pain that travels from the lower back or buttock into the thigh, calf or foot, usually on one side.
• Leg pain that is often worse than the back pain itself.
• Tingling, pins and needles or numbness in part of the leg or foot.
• Pain that increases with long sitting, bending forward, coughing or sneezing.
• Mild weakness, for example difficulty standing on the toes or lifting the front of the foot.
• Difficulty finding a comfortable position to sleep.

What causes sciatica?

Disc bulge or slip disc

The most common cause in younger and middle-aged adults is a disc bulge, often called a slip disc. The soft inner part of a spinal disc pushes outward and irritates a nearby nerve root, both by pressure and by chemical inflammation. Discs do not actually slip out of place, and many disc bulges shrink or become less irritating over weeks to months.

Narrowing of the spinal canal

In older adults, age-related changes such as thickened ligaments and bony growths can narrow the spaces where nerves exit the spine. This is called lumbar spinal stenosis and often causes leg pain or heaviness after walking or standing for a while, which eases on sitting or bending forward.

Other causes

Less commonly, sciatica-like pain can come from a slipped vertebra (spondylolisthesis), tight or irritated muscles in the buttock, pregnancy-related changes, or, rarely, infection or tumours. A careful assessment helps tell these apart.

Who is more likely to get it?

Sciatica is common in people between their thirties and fifties. Risk is higher with long hours of sitting, frequent heavy lifting, jobs involving driving or two-wheeler commuting, smoking, low physical activity and being overweight. Many patients we see have desk jobs, run businesses that keep them seated for long hours, or have lifted something heavy at home in an awkward way.

How a physiotherapist assesses sciatica

During an assessment, your physiotherapist will ask how the pain started, what makes it better or worse, and whether you have any warning symptoms. The physical examination usually includes:

• Checking how your back moves and which directions ease or increase leg pain.
• Testing strength in the hip, knee, ankle and toes.
• Checking reflexes and sensation to see which nerve root may be involved.
• Nerve tension tests, such as gently raising the straight leg while you lie down.
• Looking at posture, walking and the way you sit and get up.

An MRI is not always needed at the start. Doctors usually request one if symptoms are severe, not improving after several weeks, or if there are warning signs. Remember that many people without any pain also have disc bulges on MRI, so scan findings must always be matched with your symptoms.

How physiotherapy helps

Physiotherapy for sciatica focuses on calming the irritated nerve, keeping you as active as possible and building strength so the back can cope with daily life again. A plan may include:

• Directional exercises: Some people find that certain repeated movements, such as gentle back extensions while lying on the stomach, reduce leg pain and move it closer to the back. This is called centralisation and is usually a good sign.
• Nerve gliding: Gentle movements that help the nerve slide more freely, done slowly and without forcing.
• Pain relief: Heat, positioning advice and electrotherapy such as TENS may help in the early phase.
• Core and hip strengthening: Gradually introduced once pain settles, to support the spine.
• Activity pacing: Breaking up sitting time, walking short distances often, and slowly increasing tolerance.

Simple things you can do today

• Keep moving gently. Short walks every couple of hours are usually better than lying in bed all day.
• Avoid sitting for long stretches. Stand up every 20 to 30 minutes.
• Try lying on your back with a pillow under your knees, or on your side with a pillow between your knees.
• Avoid heavy lifting and repeated bending for a few days.
• Take medicines only as advised by your doctor.

Stop any position or exercise that makes leg pain spread further down the leg or increases numbness or weakness, and let your physiotherapist know.

When to see a doctor urgently

Most sciatica is not dangerous, but some symptoms need immediate medical attention. Go to a doctor or emergency department urgently if you have:

• Difficulty passing urine, loss of bladder or bowel control, or new constipation with numbness.
• Numbness in the groin, private parts or inner thighs (saddle area).
• Weakness in the leg or foot that is getting worse, such as foot drop.
• Symptoms in both legs at the same time.
• Fever, unexplained weight loss, a history of cancer, or pain after a serious fall or accident.

How long does sciatica last?

Many people notice clear improvement within six to twelve weeks, though some recover faster and others take longer. Recovery is often uneven, with good days and bad days. Leg pain usually improves before tingling or numbness. Staying active, following your exercise plan and avoiding long sitting all help.

Physiotherapy at home in Jaipur

Travelling in traffic or riding a two-wheeler to a clinic can be very painful when you have sciatica. LifeWell Physio offers back pain and sciatica physiotherapy at home, where Dr. Rohit Kumar assesses your symptoms, checks nerve signs and starts a safe plan in your own room. We visit localities across the city, including Mansarovar.

If leg pain is making it hard to sit, sleep or work, send a WhatsApp enquiry to LifeWell Physio and we will suggest the earliest home visit time.