The earliest symptoms of chronic right heart failure are gastrointestinal symptoms such as abdominal distension, poor appetite, nausea, vomiting, etc. Later on, other symptoms of right heart failure such as lower limb edema and positive hepatic-jugular venous reflux sign gradually appear. Right heart failure is a series of symptoms caused by right heart systolic and diastolic dysfunction resulting in insufficient blood excretion of the right heart to support the body’s needs. When right heart failure occurs, the right heart systolic function is limited, the right heart excretion is reduced, and the amount of blood remaining in the right ventricle after right heart contraction increases resulting in obstruction of venous return to the lower limbs, which leads to lower limb edema, gastrointestinal stasis, abdominal distension, poor nausea, and other gastrointestinal symptoms, hepatic stasis, and gradually Hepatic-jugular venous reflux sign appears. If there is concurrent left heart failure and aggravation of right heart failure, the symptoms of dyspnea may be reduced. The diagnosis of right heart failure is mainly based on the BNP test, and cardiac ultrasound examination of cardiac output can clarify the diagnosis. The treatment of right heart failure is mainly to reduce the anterior and posterior load of the right heart, enhance the contraction of the right heart, grill application of diuretics, angiotensin-converting enzyme inhibitors, digitalis to control the symptoms and slow down the occurrence and development of heart failure.