Is it normal for an infant’s leg creases to be asymmetrical?
In most cases, asymmetrical thigh creases in infants are abnormal and are commonly observed in children with developmental dysplasia of the hip (DDH).

Generally, hip joint abnormalities may manifest as follows: unequal leg length. With the infant lying supine, gently bring both legs together and compare their lengths. In unilateral hip dislocation, the legs will appear unequal in length. When the infant is supine with knees flexed and feet flat on the bed, the heights of the two knees will differ in cases of unilateral hip dislocation. Attempt simultaneous hip abduction: a normal hip joint can typically abduct to 80–90 degrees, whereas hip dysplasia significantly restricts this range of motion. It is strongly recommended that infants undergo evaluation by a specialist physician to confirm the absence of hip abnormalities before reassurance can be provided.