The hamstring muscles are located at the back of the thigh, between the hips and knees. 

Sciatica is defined as pain in the lower extremities resulting from irritation to the sciatic nerve. Pain is typically felt from lower back to the back of the thigh and can radiate to below the knee. Sciatica can cause pain, a burning sensation, numbness or tingling, and can feel like a jolt or electric shock.