Left ventricular hypodiastolic function may be asymptomatic, but in severe cases it may present with chest tightness and shortness of breath, and in severe heart failure it may present with dyspnea. Left ventricular hypodiastolic function is the result of cardiac ultrasound examination, suggesting that the function of the left ventricle declines, but some patients do not have a serious decline in cardiac function in the early stage, and may not have any clinical manifestations. When cardiac function declines to a certain degree, cardiac insufficiency can occur, and patients can show symptoms of chest tightness and shortness of breath after activity. Patients with severe heart failure can develop dyspnea and even risk sudden death. In left ventricular diastolic insufficiency, it is important to assess the severity of the condition and look for the primary cause of the left heart insufficiency to improve the symptoms and treat the triggering disease, but the specific treatment plan should be in accordance with the doctor’s instructions.