Hip pain can show up in the groin, the outer hip, the buttock, or down the thigh, and it does not always come from the hip joint itself. The lower back, the pelvis, and the surrounding muscles can all refer pain to this area. Stiffness after sitting, discomfort with walking or stairs, and trouble sleeping on one side are all common. Care begins by sorting out where the pain is truly coming from, then works to restore motion, reduce strain on the joint, and help you move and rest more comfortably.