The causes of chest pain like forked breath mainly include the following:1. Consider that it is caused by respiratory system diseases. The main causes include spontaneous pneumothorax, rupture of pulmonary blister, acute pleurisy, acute and chronic bronchitis, etc., which can be clarified by performing chest X-ray examination, usually accompanied by cough, breathlessness, abnormal breathing and other symptoms. 2. Consider that it is caused by cardiac system disorders. The pain can be clarified through electrocardiogram and cardiac ultrasound examination. 3.It is considered to be caused by strain on the chest muscles, which is caused by strain on the chest muscles due to heavy lifting or sudden turning, which leads to pain. 4.It is considered to be caused by intercostal nerve pain and costochondritis, which are both causes of pain. The pain caused by these two causes, together with taking anti-inflammatory and analgesic drugs are not good, and can be relieved by applying heat.