Decreased left ventricular relaxation is usually caused by high blood pressure, coronary heart disease and other diseases. The development of the disease can be alleviated by controlling blood pressure and treating the primary disease such as coronary heart disease. 1. Control of blood pressure: In the early stage of hypertension, ventricular filling may be impaired, thus causing a decrease in left ventricular relaxation. At this time, it is necessary to control blood pressure in order to prevent further deepening of the heart disease. Controlling high blood pressure can be done by taking antihypertensive drugs such as nifedipine according to the doctor’s prescription. 2. Treatment of coronary heart disease: myocardial ischemia caused by coronary heart disease can also cause a decrease in left ventricular relaxation, which can be treated with medications such as metoprolol under the guidance of a doctor, but it is important to note that the use of this drug is prohibited for patients with bradycardia and may cause dizziness and discomfort after use. If there is a decrease in left ventricular relaxation, it is best to complete the relevant examinations to determine the cause of the disease, and then under the guidance of the doctor to avoid the development of the disease, and ultimately the emergence of heart failure and other conditions.