The facial features of a bad heart include dark face, cyanosis, edema and xanthoma. 1. Dark face: if the patient has mitral valve stenosis and other diseases, then there can be right heart failure resulting in blood stasis in the circulation, which can lead to the symptoms of dark face. 2. Cyanosis: if the patient has heart failure, rheumatic heart disease, etc., then there can be a decline in the heart beat function, facial hypoxia and thus the phenomenon of cyanosis. 3. Edema: due to the insufficiency of the heart, the blood return of the whole body is not smooth, and the phenomenon of facial edema will also appear. 4. Erythroma: because of atherosclerosis and other heart diseases, the blood lipids in the blood are high, and the phenomenon of erythroma can appear at this time. Finally, if you have a bad heart, please consult a doctor in time.