The common causes of cramps in the middle of the patient’s chest are mainly the following: a. Patients spend a lot of time exercising their chest muscles, causing a large accumulation of local lactic acid and metabolic waste, resulting in a twitching phenomenon in the local muscles. At this time, it is recommended that patients take adequate rest, and the chest muscles are fumigated with moxibustion strips and massage with massage. Most patients can completely absorb the local lactic acid and other metabolic wastes after 2-3 days, and the symptoms of repeated cramps in the middle of the chest can be relieved by themselves. Second, adolescent and elderly patients can show spasmodic contraction of the chest muscles and recurrent cramps due to the relative lack of calcium in the body. At this time, it is recommended that patients eat more chicken, fish, lean meat, eggs, milk and other foods containing more protein, or take appropriate vitamin D and calcium supplements, so as to alleviate the performance of chest muscle cramps caused by calcium deficiency in the body.