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Sciatica is a condition that occurs when the sciatic nerve—the longest and largest nerve in the human body—becomes irritated, inflamed, or compressed. Rather than being a disease itself, sciatica is a symptom of an underlying problem affecting the lower back or pelvis.
The pain usually starts in the lower back or buttock and travels down one leg, sometimes reaching the foot. Depending on the severity, sciatica can range from mild discomfort to intense, burning pain that makes walking, sitting, or standing difficult.
Most cases improve with appropriate treatment, but persistent or severe symptoms require medical evaluation to prevent long-term nerve damage.
The sciatic nerve originates in the lower spine and travels through the hips, buttocks, and down each leg.
When this nerve is compressed or irritated, it can cause pain, numbness, tingling, or weakness anywhere along its path.
Sciatica usually affects only one side of the body, although both sides can occasionally be involved.
Sciatica is one of the most common causes of leg pain.
It frequently affects:
Several conditions can compress or irritate the sciatic nerve.
A slipped or herniated disc is the most common cause of sciatica. The damaged disc presses on nearby nerve roots.
As spinal discs wear down with age, they may irritate nearby nerves.
Narrowing of the spinal canal can compress the sciatic nerve.
Tight muscles in the hips or buttocks, particularly the piriformis muscle, may compress the sciatic nerve.
Weak core, hip, and back muscles reduce spinal stability and increase pressure on the lower back.
Falls, accidents, or sports injuries can damage structures around the sciatic nerve.
Hormonal changes and increased pressure on the lower spine may temporarily cause sciatica during pregnancy.
Symptoms usually occur on one side of the body.
Common symptoms include:
Your risk increases if you:
Seek medical attention if:
Diagnosis usually includes:
Your healthcare provider will ask about:
Assessment may include:
Depending on symptoms, imaging may include:
Treatment depends on the underlying cause.
Physical therapy can help:
Recommended exercises may include:
Helpful lifestyle modifications include:
Doctors may recommend:
Medication should always be taken under professional guidance.
Some patients may benefit from epidural steroid injections to reduce nerve inflammation.
Surgery may be recommended if:
Many cases are preventable.
No. Some people experience pain mainly in the buttock or leg without significant lower back pain.
In many cases, gentle walking helps reduce stiffness and promotes recovery, but severe pain should be assessed before beginning exercise.
Yes. Most people recover with conservative treatments such as physical therapy, exercise, and lifestyle changes.
Mild cases may improve within a few weeks, while chronic or severe cases may take several months depending on the underlying cause.
Yes. Prolonged sitting increases pressure on the lower spine and can aggravate sciatic nerve irritation.
Sciatica can make simple activities like sitting, walking, or sleeping extremely uncomfortable. Whether it's caused by a herniated disc, muscle weakness, spinal degeneration, or nerve compression, early evaluation can help identify the source of your symptoms and guide effective treatment.
A comprehensive assessment can help you understand your condition and develop a personalized recovery plan.