Hip pain is a discomfort or soreness in the hip joint and its surrounding area. It can be caused by a variety of factors, including injury, osteoarthritis, bursitis, tendinitis, pelvic floor problems, and muscle or ligament strain. It is important to get an accurate diagnosis of the cause of symptoms to effectively treat the problem. Symptoms can range from mild discomfort to severe pain and can limit mobility. The pain may be felt in the buttocks, lower back, groin, thigh or knee and may be accompanied by stiffness, weakness, tenderness, numbness, swelling or redness in the hip area.