Chest pain is one of the symptoms of early pregnancy reaction, but it does not mean that the appearance of chest pain is pregnancy, it may also be breast pain caused by breast enlargement, mastitis or before menstruation, so it should be judged according to other symptoms and tests. In case of pregnancy, in addition to chest pain, there is a history of menopause, and after menopause, nausea and vomiting with dizziness, weakness of the limbs, loss of appetite, drowsiness, etc. The laboratory test or blood test for human chorionic gonadotropin is also significantly elevated. Secondly, chest pain can occur when the estrogen level increases before menstruation or when the patient has breast enlargement. Because estrogen levels are relatively high before menstruation, physiological breast enlargement may occur, resulting in chest pain. In addition, when there is mastitis, because the ducts of the breast are not open, it can cause stagnation, and in addition to chest pain, breast lumps may appear. Therefore, the first thing to do after the appearance of chest pain is to diagnose and discriminate, for the exclusion of the above-mentioned cases of chest pain, it is necessary to pay attention to it, and it is recommended to go to the hospital for examination in a timely manner to clarify the cause before carrying out targeted treatment.