Sciatica

The term “sciatica” describes a set of symptoms and is not a diagnosis

The symptoms are pain, numbness, weakness, tingling, pins and needles along the sciatic nerve from the lower back to the buttock, all the way to the leg and foot, and involves only one side of the body.

The most common diagnosis is a compression of a lumbar nerve root between the L4 and S1 spinal levels, caused by a herniated disc pressing against it.