Hip dysplasia occurs when the hip joint doesn’t develop normally. It is a condition that may be recognized shortly after birth or later in life, which is then classified as adolescent hip dysplasia (AHD).

In a healthy hip joint, the ball of the hip, or top of the femur (thighbone), fits well and is contained within the socket in the pelvis. Hip dysplasia occurs when the ball and socket don’t fit together as they should. It can end up causing pain and, if left untreated, can lead to early arthritis.