Abnormal left ventricular filling may be due to hypertension, mitral valve insufficiency, and blood loss. It can be treated with antihypertensive drugs, mitral valve replacement and blood transfusion and rehydration. 1. Hypertension: Hypertensive patients have increased blood pressure, which leads to decreased left ventricular ejection and increased diastolic blood stasis in the left ventricle, resulting in slower diastolic filling, causing abnormal left ventricular filling. Hypertensive patients can take nifedipine, valsartan and other antihypertensive drugs as prescribed by the doctor to reduce blood pressure and improve the left ventricular filling abnormality. 2. Mitral valve insufficiency: Mitral valve insufficiency can lead to regurgitation of blood during systole, causing diastolic left ventricular filling to increase, resulting in abnormal left ventricular filling. Mitral valve insufficiency can be treated conservatively with medications such as captopril or by mitral valve replacement or repair. 3. Blood loss: Blood loss will lead to insufficient blood volume and reduced return blood volume, thus leading to abnormal left ventricular filling. Patients with blood loss should be given blood transfusion and rehydration solution to replenish blood volume, and at the same time, stop bleeding quickly to ensure the return blood volume and improve the left ventricular filling abnormality. Abnormal left ventricular filling should go to the hospital in time, complete the examination, and give targeted treatment after clarifying the cause of the disease.