Bones can be softened by the following methods: First, stretching the joints: Patients should often stretch the joints before moving, so that the range of motion of the joints gradually increases, and also improve the tension and stiffness of the limb muscles, which eventually makes the bones and joints softer. Second, more exercise: aerobic training can be carried out, such as swimming, rope skipping, aerobics, etc. Through such training, the flexibility of the bones and joints can be improved, and the patient can complete the movements that normally cannot be completed. After the above methods, the bones will become softer, the range of motion of the joints will increase, and the patient will be able to complete movements such as dancing.