Signs of hip dysplasia in infants and newborns include limping or walking with a duck-like gait, different length legs, uneven thigh skinfolds and decreased mobility on one side, explains the American Academy of Orthopedic Surgeons. For adults, hip pain and limping are common symptoms, states the International Hip Dysplasia Institute.
Symptoms may be apparent at birth or manifest during the early stages of a child's development. The AAOP notes that babies born with hip dysplasia may not show outward signs, and levels of severity vary. The head of the femur is entirely dislocated in the most extreme cases, and the head simply moves around in the joint without dislocation in mild cases. While hip dysplasia is typically present at birth, it can develop from improper swaddling.