Sciatica causes shock-like pain along the back of the hip, thigh and legs into the sole or along the outer part of the thigh and leg into the top of the foot. It can also feel like a sharp sensation along the front of the thigh or the knee or the inner part of the leg. The pattern of pain depends on the nerve root involved. This pain can also be associated with tingling and numbness in the same area. Rarely, this pain can be associated with the weakness of the leg or foot and involvement of bowel or bladder control.