Chest pain is a relatively common phenomenon in daily life, there are various diseases that cause chest pain, mainly: first, heart disease, common such as myocardial infarction or coronary heart disease, manifested as pain in the precordial region, may be accompanied by posterior back radiating pain, oral nitroglycerin should be taken to dilate the arteries, while emergency transport to the regular hospital cardiology department for further treatment; second, lung disease, mostly severe lung infection spread to the dirty layer of the pleura, causing Acute pleurisy, so levofloxacin or cephalosporin anti-infection treatment can be given; third, cystic hyperplasia of the breast, one of the most common causes of chest pain in female patients, initially manifested as breast swelling and discomfort, pain is aggravated before menstruation and relieved after menstruation. If the symptoms are obvious, symptomatic treatment such as prolotherapy and local physiotherapy can be given, and if the chest pain persists without relief, surgical removal can be considered. In conclusion, there are various diseases that cause chest pain, once there is persistent chest pain, you should go to the hospital in time to avoid delaying the condition.