Both long and short legs can be corrected, and the correction of long and short legs includes non-surgical treatment and surgical treatment. Non-surgical treatment is suitable for leg length difference, generally less than 2CM. At this time, short-legged shoes can be used to correct it. Wear height-increasing shoes on one side of the short legs appropriately, so that the lengths of the two legs are as equal as possible, and both long and short legs can be corrected. In addition, you can also operate. Especially for the long and short legs caused by hip joint diseases, such as congenital hip dysplasia, long and short legs caused by prosthesis sinking after femoral head replacement, or long and short legs caused by dislocation caused by femoral head necrosis, the different lengths of the two legs can be corrected by hip replacement surgery to make them equal. So as to correct long and short legs and improve walking posture.