The left and right shoulders are not the same height, also known as high and low shoulders. High and low shoulders may be caused by long-term improper posture, strain injury, scoliosis, unequal length of lower limbs. Different causes lead to different treatments, including medication, physical therapy and surgery. 1. Long-term improper posture and strain injury: Functional high and low shoulders due to the imbalance of shoulder muscles on both sides, which can be corrected by correcting the standing and walking postures and muscle function exercises. 2. Scoliosis: Scoliosis can cause unequal height of shoulder blades on both sides. Scoliosis should be treated according to the cause. Physical therapy can be performed with the use of braces, and in severe cases or when conservative treatment is ineffective, surgery is needed for orthopedic treatment. 3. Unequal length of both lower limbs: In order to maintain the balance of the body may cause high and low shoulders, the causes include pelvic tilt, congenital hip dysplasia, poliomyelitis, tendon and ligament atrophy. Double lower limbs unequal length should be treated according to the specific cause and degree of the disease, mainly including medication, physical therapy and surgical treatment. It is recommended to go to the regular hospital in time to identify the cause of the disease and actively cooperate with the doctor’s treatment when suffering from high and low shoulder. Patients should pay attention to the sitting and walking posture, and avoid carrying school bags or other heavy objects on one shoulder for a long time.