The sudden pain like cramp in the waist may be caused by the strain or sprain of the lumbar muscles caused by improper or excessive force when the patient participates in sports or heavy physical labor. It is recommended that patients should rest in time, then apply heat to the local area and avoid weight-bearing on the lumbar area again, which can effectively relieve the symptoms of forked breath. It is recommended that patients should go to the hospital for lumbar spine massage, such as massage or acupuncture, if this situation is not significantly relieved, which may speed up the relief of these symptoms. It is recommended that patients should be treated in a timely manner and avoid participating in physical exercise or heavy physical labor again, which can cause chronic strain on this muscle and thus affect the patient’s normal life in the later stages.