Heart failure is categorized into left heart failure, right heart failure and total heart failure, which have different manifestations and symptoms, but generally may present with symptoms such as dyspnea, cough, renal impairment, lack of appetite, nausea, vomiting and edema. 1. Left heart failure: the pulmonary circulation is stagnant, which is mainly characterized by symptoms such as dyspnea, cough and renal impairment. Exertional dyspnea is the earliest symptom of left heart failure; when pulmonary stasis reaches a certain level, the patient can not lie down, and paroxysmal dyspnea may occur at night, waking up suddenly because of breath-holding after falling asleep, and gradually relieved after resting in a seated position. In addition, pulmonary stasis may also lead to coughing, coughing up sputum, and even pink foamy sputum in acute left heart failure. Renal function impairment is mainly reflected in oliguria, elevated creatinine and so on. 2. Right heart failure: with body circulation stasis, there will be digestive symptoms, exertional dyspnea, edema and other symptoms. If the gastrointestinal tract is bruised, symptoms such as lack of appetite, nausea and vomiting may occur; exertional dyspnea is also common in patients with right heart failure secondary to left heart failure. In addition, symmetrical depressed edema may occur in the low-hanging parts of the body. 3. Total heart failure: When the pressure of the pulmonary artery increases after left heart failure, the load on the right heart increases, and the right heart failure follows, that is, total heart failure. All of the above symptoms may occur. If the above symptoms occur, it is recommended to consult a doctor in time and standardize the treatment under the doctor’s guidance to avoid further development of the disease.