The hip joint is one of the body’s largest weight-bearing joints. The hip joint is a ball and socket joint because there is a “ball” located on the top of your thigh bone that moves within a “cup” in your pelvis. This helps the hip remain stable even during twisting and extreme ranges of motion. A healthy hip joint allows you to walk, squat, and turn without pain.
The hip joint is covered with smooth tissue, called cartilage. It covers the ball of the thighbone, and lines the socket of the pelvic bone. Healthy cartilage absorbs stress and allows the ball to glide easily in the socket.
Muscles and tendons also work in the hip to allow movement but if injured may be painful.
Hip joint pain may be confused at times with problems in the lumbar spine and/or sacroiliac joint. It is important to have an evaluation by your provider to determine the source of your hip pain.
No matter what your age, a hip problem may keep you from activities you enjoy. Pain and stiffness may even limit daily tasks you can do.
For more specific information, please check with your provider.
Source and for additional information: American Academy of Orthopaedic Surgeons (AAOS)