Low blood pressure at 56mmHg belongs to the low population, if the woman herself exists in the body of low blood pressure, this situation can be accepted. Like the elderly prone to diastolic blood pressure reduction, especially due to atherosclerosis, many elderly blood pressure in the low pressure will be less than 55mmHg. recommended for elderly women, try not to low pressure is less than 50mmHg. usually, if it is a young person, caused by genetic or physical factors of the state of low blood pressure, the human organs or life expectancy has no effect, do not be excessively worried. If the frequent occurrence of postural hypotension, it is best to improve the examination, such as prone standing blood pressure, endocrine hormone examination and so on to clarify the diagnosis.