Sciatica

Sciatica is a condition characterized by pain that radiates along the path of the sciatic nerve. The sciatic nerve is the largest nerve in the body and runs from the lower back through the hips and buttocks and down each leg. Sciatica typically affects only one side of the body.

Sciatica is not a disease itself but a symptom of an underlying problem, most commonly a herniated disc, bone spur, or spinal narrowing that compresses part of the nerve. The pain can range from mild discomfort to severe, disabling pain. Early treatment often helps relieve symptoms and prevent complications.

Symptoms

The main symptom of sciatica is pain that starts in the lower back and travels down the leg along the sciatic nerve pathway.

Common symptoms include:

• Sharp, burning, or shooting pain in the lower back, buttock, or leg

• Pain that worsens when sitting for long periods

• Tingling or pins-and-needles sensation in the leg

• Numbness in the affected leg or foot

• Muscle weakness in the leg

• Difficulty standing up or walking

In severe cases, loss of bladder or bowel control may occur and requires immediate medical attention.

Causes

Sciatica occurs when the sciatic nerve becomes compressed or irritated.

Common causes include:

• Herniated or slipped disc

• Spinal stenosis, which is narrowing of the spinal canal

• Degenerative disc disease

• Bone spurs

• Piriformis syndrome

• Spinal injury or trauma

These conditions put pressure on the nerve roots that form the sciatic nerve, leading to pain and other symptoms.

Risk Factors

Several factors increase the risk of developing sciatica:

• Age-related spinal changes

• Prolonged sitting

• Obesity

• Heavy lifting or physically demanding work

• Diabetes, which can damage nerves

• Poor posture

Lifestyle and occupational habits play a significant role in increasing the likelihood of nerve compression.

Complications

Most cases of sciatica improve with conservative treatment, but untreated severe compression can cause complications.

Possible complications include:

• Permanent nerve damage

• Persistent numbness or weakness

• Loss of sensation in the affected leg

• Loss of bladder or bowel control

Prompt treatment reduces the risk of long-term nerve damage.

Prevention

Sciatica may not always be preventable, but certain measures can reduce the risk.

Helpful preventive strategies include:

• Maintaining proper posture while sitting and standing

• Exercising regularly to strengthen core and back muscles

• Avoiding prolonged sitting

• Lifting heavy objects correctly using leg muscles

• Maintaining a healthy body weight

Adopting healthy lifestyle habits and addressing back pain early can help prevent sciatica or reduce its recurrence.