This document discusses sciatica, which is pain that radiates along the sciatic nerve from the lower back through the hips and legs. Sciatica is caused by inflammation or damage to the sciatic nerve from issues like herniated discs or bone spurs. Common symptoms include pain, numbness, or weakness in one leg. While most cases resolve with physiotherapy, severe sciatica with leg weakness or bowel/bladder changes may require other treatment. Maintaining good posture and exercise can help prevent sciatica, while physiotherapists use treatments like heat, stretching, exercises and dry needling to diagnose and treat the underlying cause of back pain.