Cardiogenic edema, which is also known as edema due to heart failure, is manifested as follows: 1, edema is characterized by spreading upward from the bottom, edema initially begins in both lower limbs, edema is light in the morning and heavy in the evening, if timely treatment of heart failure, edema will get better after the application of cardiac tonicity and diuretics, and if the condition is not well controlled, the edema will gradually spread upward to abdominal, thoracic, and generalized puffiness; 2, another feature of cardiogenic edema is localized concavity on pressure, which is different from that caused by hypothyroidism and other angioneurotic edema. This is the characteristic of tissue gap edema, different from the edema caused by hypothyroidism and other angioneurotic edema; 3, a part of patients with cardiogenic edema, which can not be seen in appearance, will be manifested as nausea, abdominal distension, loss of appetite, which is the gastrointestinal stasis manifestation, and a part of the patient manifested at night lying down to sleep with coughing or shortness of breath, which is the manifestation of cardiogenic pulmonary edema.