A limb length difference may simply be a mild variation between the two legs of the body
Observation. If your child has not yet reached skeletal maturity, your doctor may recommend simple observation until growing is complete. During this time, your child will be reevaluated at regular intervals to determine whether the discrepancy is increasing or remaining the same.
Wearing a shoe lift. A lift fitted to the inside or outside of the shoe can often improve a patient’s ability to walk and run. A shoe lift may also relieve back pain caused by a smaller limb length discrepancy. Shoe lifts are inexpensive and can be removed easily if they are not effective.