Insufficient blood supply to the heart is usually not self-healing and requires finding the cause of the insufficiency and treating it symptomatically. Insufficient blood supply to the heart is strictly a lack of blood supply to the heart muscle. The coronary arteries, which are responsible for supplying blood to the heart muscle, are narrowed due to plaque or thrombus, and blood flow to the heart muscle is not normal, resulting in insufficient blood supply. Therefore, it is usually not possible to cure the insufficiency of blood supply to the heart on its own, and the degree of stenosis in the coronary arteries needs to be clarified for targeted treatment. For mild to moderate patients, aspirin and statins can be used. For severe patients, stent interventions can be placed in the coronary arteries or coronary artery bypass grafting can be used to improve the symptoms of insufficient blood supply to the heart. Patients with insufficient blood supply to the heart should actively improve their lifestyle, pay attention to a low-salt and low-fat diet, control body weight, quit smoking and alcohol, avoid overwork and emotional excitement, and actively control blood pressure, blood lipids, blood sugar and other risk factors.