Hip dysplasia, also called developmental dislocation of the hip (or DDH), is a condition in which the hip joint is improperly formed such that it allows the ball and socket that comprise the joint to become easily dislocated. Some babies are born with this condition, while others may develop it during their first year. This disorder impacts only one or two babies per every thousand, and it is routinely screened for as part of a newborn’s first physical exam and subsequent well-child exams. While some babies born with hip dysplasia will not show obvious signs of the disorder, others may display an abnormal gait, different leg lengths and reduced mobility on one side as they get older. Treatment is typically provided with a Pavlik harness, subsequent brace device and when necessary, surgical procedures.