What causes low blood pressure?
Disease description:
My examination found that the high blood pressure reading was normal, while the low blood pressure reading was low. What causes high blood pressure to be normal and low blood pressure to be low?
Doctor's answer (1)
Dr. Tian Hongbo
Low blood pressure, medically referred to as hypotension, is defined as a systolic blood pressure below 90 mmHg or a diastolic blood pressure below 60 mmHg in adults. The main causes of low blood pressure include the following:
1. From the perspective of physiological factors or lifestyle, individuals who are thin, have irregular eating habits, lack physical activity, or suffer from insufficient sleep may have a weaker physical condition and reduced cardiac pumping capacity, leading to low blood pressure. Iron-deficiency anemia and atherosclerosis are also common causes of hypotension.
2. Heart diseases: Conditions such as myocardial infarction, heart failure, and pericardial effusion can weaken the heart's pumping function, resulting in low blood pressure.
3. Endocrine disorders: Conditions such as hypothyroidism and adrenal insufficiency can affect blood pressure levels.
4. Neurological diseases: Conditions such as Parkinson's disease and autonomic nervous system dysfunction can impair the body's blood pressure regulation mechanisms.
5. Orthostatic hypotension: A drop in blood pressure exceeding 20 mmHg upon sudden standing from a lying or sitting position, commonly seen in elderly individuals or patients taking certain antihypertensive medications.
If symptoms of low blood pressure occur, prompt medical attention is recommended.
