Sciatica: Causes, Symptoms, and Physiotherapy Treatments

Sciatica is one of the most common and misunderstood causes of leg pain. The term refers to pain that travels along the path of the sciatic nerve — the largest nerve in the human body — from the lower back through the buttock and down the leg. While often described as a condition itself, sciatica is actually a symptom of an underlying problem that compresses or irritates the sciatic nerve.

At Actilife Physiotherapy in Faridabad, we treat patients with sciatica regularly. The condition can range from mild discomfort to debilitating pain that affects walking, sleeping, and daily activities. The good news is that the vast majority of sciatica cases respond well to conservative physiotherapy treatment without the need for surgery.

This guide covers everything you need to know about sciatica — its causes, symptoms, how physiotherapy can help, and what you can do at home to speed your recovery.

What Causes Sciatica?

Sciatica occurs when the sciatic nerve is compressed or irritated. The most common causes include:

Lumbar Disc Herniation (Slipped Disc)

This is the most common cause of sciatica. When a spinal disc in the lower back bulges or ruptures, it can press against the sciatic nerve roots. This typically causes pain that radiates from the lower back into the buttock and down the leg, often following a specific dermatomal pattern.

Spinal Stenosis

Narrowing of the spinal canal, often due to age-related changes, can compress the nerve roots that form the sciatic nerve. This is more common in adults over 60 and often causes pain that worsens with walking and improves with sitting or leaning forward.

Piriformis Syndrome

The piriformis muscle located deep in the buttock can spasm or tighten and compress the sciatic nerve as it passes beneath or through the muscle. This mimics true sciatica but the source of compression is in the buttock rather than the spine.

Sacroiliac Joint Dysfunction

Dysfunction in the sacroiliac joint — where the spine meets the pelvis — can irritate the L4 and L5 nerve roots, producing sciatica-like symptoms.

Spondylolisthesis

A condition where a vertebra slips forward over the one below it, potentially pinching the nerve roots and causing sciatica.

Symptoms of Sciatica

Sciatica symptoms vary depending on which nerve root is compressed and the severity of the compression. Common symptoms include:

• Sharp, burning, or electric shock-like pain that radiates from the lower back into the buttock, hamstring, and sometimes down to the foot
• Numbness, tingling, or pins-and-needles sensation in the leg or foot
• Muscle weakness in the affected leg, particularly when lifting the foot (foot drop) or standing on the toes
• Pain that worsens with prolonged sitting, coughing, sneezing, or straining
• Difficulty walking or standing for extended periods

Symptoms typically affect only one side of the body. Bilateral sciatica is less common and may indicate a more central pathology such as cauda equina syndrome, which requires emergency medical attention.

How Physiotherapy Treats Sciatica

Physiotherapy is the gold standard conservative treatment for sciatica. At Actilife, we follow a comprehensive approach:

Accurate Diagnosis

We begin with a thorough assessment including medical history, movement analysis, neurological testing (reflexes, sensation, muscle strength), and special orthopedic tests to identify the specific nerve root involved and the cause of compression.

Pain Management

In the acute phase, we use gentle manual therapy, soft tissue release, and modalities like IFT or TENS to reduce pain and muscle spasm. Heat or ice therapy may also be recommended based on your symptoms.

Nerve Mobilization

Gentle neural gliding exercises help restore normal movement of the sciatic nerve within its surrounding tissues, reducing irritation and improving symptoms. These are carefully graded to avoid aggravating the nerve.

Core and Spinal Stabilization

Strengthening the deep core muscles that support the spine reduces pressure on the discs and nerves. We prescribe specific exercises targeting the transversus abdominis, multifidus, and pelvic floor muscles.

Postural Correction

We identify and correct postural habits that contribute to nerve compression, such as slouching, prolonged sitting, or poor lifting technique. Ergonomic advice for your workplace and daily activities is provided.

Progressive Exercise Program

As symptoms improve, we introduce a graded exercise program to restore strength, flexibility, and function. This includes exercises for the glutes, hamstrings, and back extensors, along with functional training for your specific activities.

Exercises for Sciatica Relief

Here are some exercises that can help relieve sciatica symptoms. Always consult your physiotherapist before starting, as some exercises may aggravate certain types of sciatica.

Piriformis Stretch

Lying on your back, cross the affected leg over the opposite knee and gently pull the knee toward the opposite shoulder. Hold for 20-30 seconds. This stretches the piriformis muscle and can relieve sciatic nerve compression.

Cat-Camel Stretch

This gentle spinal mobilization improves mobility in the lumbar spine and can reduce pressure on nerve roots. Perform slowly with controlled breathing.

Supine Hamstring Stretch

Lying on your back with a towel or strap around your foot, gently raise your leg while keeping the knee straight. Hold for 20-30 seconds. This reduces hamstring tightness that can exacerbate sciatica.

Knee to Chest Stretch

Lying on your back, gently pull one knee toward your chest while keeping the other leg flat. Hold for 15-20 seconds. This mobilizes the lower spine and glutes.

Preventing Sciatica Recurrence

Once your sciatica resolves, prevention is key:

• Maintain strong core and back muscles through regular exercise
• Practice good posture — especially when sitting for long periods
• Use proper lifting technique — lift with your legs, not your back
• Maintain a healthy weight to reduce stress on the spine
• Stay active — regular walking and swimming are excellent low-impact activities
• Avoid prolonged sitting — stand and stretch every 30 minutes
• Sleep on your side with a pillow between your knees to maintain spinal alignment