Hidden pain in the undershirt can be given general treatment, physiotherapy, medication, surgery, etc. depending on the cause. The causes may be soft tissue injury, angina, cholecystitis and so on. 1. Soft tissue injury: prolonged exertion, poor posture or sudden strenuous exercise can lead to back muscle, fascia and other soft tissue injuries, should pay attention to rest, warmth, can be given to physical therapy such as hot compresses, when the condition is serious, can be given to ibuprofen and other pain medication. 2. Angina pectoris: When the heart experiences acute ischemia and hypoxia, angina pectoris will be caused, resulting in a series of clinical symptoms, including back pain. Activities should be stopped immediately, nitroglycerin, aspirin and other medications can be given, and when the condition is serious, percutaneous coronary intervention and other surgical treatments are feasible. 3. Cholecystitis: when the biliary system obstruction, infection, ischemia, etc., can lead to cholecystitis, undershirt pain and other clinical symptoms, the need for anti-infective treatment, such as the application of ceftriaxone and other drugs, when the condition is serious, need to carry out cholecystectomy and other surgical treatment. Undershirt pain may also have other causes, such as trauma, cervical spondylosis, etc. It is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, and then under the guidance of the doctor to give targeted treatment or treatment. All of the above medications should be applied under the guidance of a physician, and should not be used without authorization.