Fractures can grow taller. Bone fracture is usually called osteotomy or bone lengthening in orthopedics. The principle is to use the external fixation device to break the complete bone, and use the tissue regeneration ability and characteristics of the human body to adjust the speed of 0.5- 1mm every day to make the limbs stretch slowly. The routine increase can reach 10- 16cm. Excessive stretching may lead to excessive stretching of nerves and blood vessels, resulting in numbness of limbs and poor blood circulation. Although osteotomy can make the body grow taller, it is not allowed to be used in normal people by law now, and it can be used in cases where the limbs of patients with polio and other diseases are not equal in length. It is suggested that the height-increasing technique should be selected reasonably, and it is best to exercise more before the epiphysis is closed to promote the height development.