The main symptoms of heart failure in young people are the main symptoms of heart failure, which may include dyspnea, cough, sputum, hemoptysis, weakness and fatigue, headache and dizziness, panic, edema, varicose veins and other symptoms. 1. Dyspnea: it is the earliest symptom, after physical activity, after exercise, the increase in the volume of return blood, the left atrial pressure rises, aggravating pulmonary stasis, dyspnea, when pulmonary stasis reaches a certain level, breathing will be more difficult, so that the patient has a sit-up breathing. In severe cases, the patient suddenly wakes up at night due to breathlessness and is forced to take a sitting position, which is mostly relieved after sitting and resting. 2. Cough, sputum and hemoptysis: caused by stasis of blood in alveolar and bronchial mucosa, mostly occurring at night, with white syrupy frothy sputum and blood in sputum. 3. Weakness and fatigue, headache, dizziness, panic: mostly due to insufficient perfusion of organs and tissues. 4. Edema and varicose veins: symptoms occurring in the late stage of combined right heart failure, with edema of the tissues due to elevated venous pressure, most often manifested as double lower extremity edema. Edema leads to blood stasis, which causes varicose veins. After the appearance of the above symptoms, you should seek medical treatment in time to avoid adverse effects.