Cardiac hypodiastolic function is the ventricular diastole is not sufficient, can lead to ventricular filling weakened, the systemic blood supply is reduced, seen in a variety of cardiac organic lesions, can also be seen in hypertension, coronary heart disease and other early. 1. In the absence of hypertension, hyperlipidemia, diabetes mellitus and other cardiovascular pathologies, and in the absence of cardiac ultrasound cardiac deformation, the presence of hypodiastolic function may be a physiological change. 2. If the patient has poor blood pressure control, coronary heart disease and other underlying pathologies, systolic function can be normal, but the diastolic function is reduced, should be alert to the occurrence of diastolic heart failure. 3. Organic cardiac lesions: such as restrictive heart disease, hypertrophic heart disease, constrictive heart disease, etc., due to myocardial lesions, the diastolic function of the heart will be significantly reduced. Reduced diastolic function of the heart should be clearly diagnosed as soon as possible, early detection, early treatment, to avoid delaying the condition.