Asymmetrical buttock creases can suggest hip dysplasia in infants but, like a hip click, an ultrasound or x-ray study will need to be done to determine whether the hips are normal or not.
Asymmetrical gluteal creases may be a sign of hip dysplasia in one hip. Thigh folds (seperate from gluteal folds) that are asymmetrical rarely indicate hip dysplasia unless they are associated with uneven gluteal creases.
When a baby’s hip dislocation is present for several months, the hips gradually lose range of motion and the leg appears shorter because the hip has migrated upward.
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