Body & anatomy

Sciatic nerve

The sciatic nerve is a large nerve on each side of the lower body. It forms from nerve roots in the lower spine, passes through the buttock and thigh, and divides into branches serving the lower leg and foot.

In everyday words

The nerve and its branches carry signals involved in movement and sensation. Sciatic nerve names the structure; sciatica describes a pattern of nerve-related symptoms.

What to keep in mind

Not all leg or back pain is sciatica. New leg weakness, numbness around the groin, or changes in bladder or bowel control need urgent medical assessment.

Symptoms & care
Physical therapist
A physical therapist is a licensed healthcare professional who evaluates movement and function and helps people improve their ability to take part in daily activities.
Movement basics
Gait
Gait means the way you walk. It includes the pattern and coordination of your steps as you move from one place to another.
Body & anatomy
Lumbar spine
The lumbar spine is the lower-back region of the spine. It usually contains five vertebrae, labeled L1 through L5, and supports much of the upper body’s weight.

In everyday words

What to keep in mind

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Physical therapist

Gait

Lumbar spine