The symptoms of heart failure mainly include dyspnea, limitation of physical activity and edema. In heart failure, the pumping function of the heart decreases, and the amount of blood discharge cannot meet the metabolic needs of the body’s tissues, while the return blood to the heart is obstructed, and symptoms related to stasis in the pulmonary and body circulation and insufficient blood perfusion in organs and tissues occur. According to the damaged part of the heart heart failure can be divided into left heart failure and right heart failure. 1, left heart failure left heart failure manifests as symptoms related to pulmonary circulation stasis: mainly manifested as different degrees of dyspnea, including exertional dyspnea, nocturnal paroxysmal dyspnea, and telescopic breathing. In severe dyspnea, the respiratory rate may increase to 30 times/min, with white face, profuse sweating and irritability; cough, sputum and hemoptysis, and pink foamy sputum in acute pulmonary edema. At the same time, due to the decrease of cardiac blood excretion, symptoms related to insufficient perfusion of tissues and organs appear, such as limited physical activity, weakness, fatigue, dizziness, panic, and scanty urination. 2, right heart failure right heart failure manifests as symptoms related to body circulation stasis: mainly manifested as edema and gastrointestinal symptoms, etc. Edema usually starts from the low hanging area, mostly seen as concave swelling of both lower limbs, and swelling of the posterior back and hip-sacral area is also seen in long-term bed rest. In severe cases, pleural effusion and even pericardial effusion may occur. Gastrointestinal symptoms are caused by stasis in the digestive tract and include abdominal distention, loss of appetite, nausea, and vomiting. Early recognition of symptoms in heart failure and prompt medical attention can help control and alleviate the heart failure condition. When symptoms such as dyspnea after activity and edema of both lower limbs appear, it is important to pay attention to them and go to the hospital for relevant examination and treatment in time, so as not to delay the condition.