Sciatica is a type of leg discomfort caused by a low back issue. The sciatic nerve starts in the lower back, travels down the buttock, and branches out through the back of the leg to the foot. The sciatic nerve can be painful for a variety of reasons. Herniated discs, nerve stenosis (narrowing), hip stiffness, and pelvic misalignment are all common causes of sciatica. Symptoms of sciatica include leg muscle weakness, numbness, tingling, cramping, and burning. Medication, sciatic stretches, and, most significantly, can physical therapy help sciatica?