CHD stands for coronary heart disease, also known as ischemic heart disease. CHD is the most common type of organ lesion caused by atherosclerosis and is a serious health hazard. Patients in the actual clinical can manifest as chest tightness, chest pain, and even pain radiating to the back, the left shoulder, left forearm can also appear radiating pain, there are some atypical patients, there may also be pain in the stomach area, especially in elderly patients, there is stomach pain and heart pain is more easily confused. If you want to further clarify the severity of coronary artery disease, it is recommended that patients can undergo coronary CT or coronary angiography to help clarify whether the current coronary artery disease, through coronary angiography, to develop the most suitable drug regimen for patients.