Understanding Sciatica and Nerve Compression

Sciatica describes pain associated with irritation or compression of the sciatic nerve or the nerve roots that form it. The discomfort commonly begins in the lower back or buttock and travels down one leg. Nerve compression can occur due to a slipped disc, spinal narrowing, degenerative changes, or other conditions affecting the structures surrounding spinal nerves.

The severity can range from occasional discomfort to persistent pain that interferes with walking, sitting, working, sleeping, and other everyday activities.

Common Symptoms

Symptoms can include:

• Lower back pain extending into the leg
• Sharp, burning, or shooting pain
• Numbness or tingling in the leg or foot
• Weakness in the affected leg
• Pain aggravated by certain movements
• Difficulty sitting or standing for long periods

The location of symptoms can help identify which nerve may be affected.

Diagnosis

Evaluation begins with understanding the pattern, duration, and severity of symptoms. A neurological examination may assess muscle strength, sensation, reflexes, and movement.

An MRI or other imaging investigation may be recommended when symptoms are persistent, severe, associated with neurological deficits, or when an underlying structural problem needs to be identified.

Treatment Options

Not every patient with sciatica requires surgery. Initial treatment may include medication, activity modification, physiotherapy, and other conservative measures depending on the cause.

Neurosurgical assessment becomes particularly important when symptoms remain persistent despite appropriate treatment or when significant nerve compression is identified.

Surgery may be considered in selected patients with severe or progressive weakness, significant structural compression, or symptoms that continue despite conservative management.

Urgent medical assessment is important if back or leg pain is accompanied by new bladder or bowel problems, numbness around the groin or saddle area, or rapidly worsening weakness.

The overall goal is to identify the source of nerve compression and select an appropriate treatment that relieves symptoms while protecting neurological function.