Low blood pressure generally refers to diastolic blood pressure, the normal range should be 60~80 mmHg, the elderly diastolic blood pressure of 44 does not necessarily need to take medication, can be divided into physiological and pathological factors, can be improved through general treatment, drug therapy and treatment of primary disease. 1. Physiological factors: such as postural hypotension, i.e., sitting or lying down and then suddenly stand up, caused by low blood pressure, emotional excitement, dehydration, etc. can also make the diastolic blood pressure of 44 mm Hg, physiological hypotension generally do not need to be treated, can be relieved on their own. 2. Drug treatment: if the elderly appear pathological factors such as upright hypotension caused by diastolic blood pressure of 44 mmHg, mild cases can be relieved by lying down or disappear, failing to relieve the use of drugs to raise blood pressure as prescribed by the doctor, such as the use of volume expanders such as fludrocortisone to maintain blood volume, the use of vasoconstrictors such as midodrine hydrochloride, and so on. Note that patients with heart failure, arrhythmia, renal failure, and hypertension are prohibited from using these drugs. 3. Treatment of primary disease: If the elderly suffer from chronic wasting disease such as malignant tumor, cardiovascular system diseases and blood volume insufficiency can also lead to low diastolic blood pressure, you need to consult a doctor to diagnose the primary disease for comprehensive treatment, not only because of low diastolic blood pressure and medication. If the elderly have a low blood pressure of 44 mmHg, they should not blindly use medication to avoid serious adverse effects, and must follow the doctor’s instructions to use medication, as well as pay attention to exercise, dietary modification, and regular daily measurement of blood pressure and record.