The difference between cardiac neurosis and coronary heart disease includes different causes, different symptoms and different auxiliary examinations. 1. Etiology: cardiac neurosis is a special type of neurosis, with cardiovascular system malfunction as the main manifestation, can be combined with other manifestations of neurosis. Coronary heart disease refers to heart disease caused by coronary atherosclerosis, which results in narrowing or occlusion of the lumen of the coronary arteries, leading to myocardial ischemia, hypoxia or necrosis. 2. Symptoms: Cardiac neurosis has various symptoms, such as palpitations (rapid heartbeat, often accompanied by panic), pain in the precordial area, chest tightness, shortness of breath, dyspnea, dizziness, insomnia, and dreams. Most of them occur in young adults. Coronary heart disease patients mostly occur in middle-aged and elderly people, may appear asymptomatic myocardial ischemia, angina pectoris, myocardial infarction, etc., and the severe cases can be life-threatening. 3. Auxiliary examination: If cardiac neurosis is not combined with organic cardiovascular disease, the examination result is usually not abnormal. Coronary artery disease, on the other hand, may show dynamic evolution of electrocardiogram and markers of myocardial damage, and coronary artery CTA and angiography are helpful for differentiation. Please consult a doctor promptly for the above symptoms, and cooperate actively with the doctor after the diagnosis is clarified.