Sciatica is a term for pain along the sciatic nerve caused by a problem in the lower back. Disc problems, such as herniated discs and degenerative disc disease, can compress or irritate nerve roots in the lower back, and are common causes of sciatica. Pain, numbness, tingling, or weakness down the back of the leg and into the calf and feet are common symptoms of sciatica. Watch this animated video for a detailed description of the symptoms and causes of sciatica.
