Angina pectoris is mainly caused by insufficient blood supply to the heart. If the heart has vascular sclerosis, hypertension and hyperlipidemia for a long time will easily lead to the occurrence of heart ischemia, which is easy to cause precordial pain. At the same time, it may be accompanied by radioactive shoulder and back pain. It is necessary to reasonably use some drugs to dilate coronary arteries. For example, the treatment of nitrates, isosorbide mononitrate, etc. will help to promote the rapid improvement of pain. If symptoms recur, coronary angiography is also required, and stents can also be placed.