The most common symptom caused by low blood pressure is dizziness, especially postural hypotension, which may be aggravated when the posture changes suddenly, and may even fall and syncope. Older people may have hypotension and insufficient renal perfusion of renal artery. Insufficient renal perfusion will cause oliguria symptoms, which will cause heart failure or edema for a long time. Insufficient cerebral perfusion will cause insufficient renal function in syncope, that is, oliguria.
Some people have other diseases, such as coronary artery diseases, such as coronary artery stenosis. If it is hypoperfusion, the blood flow will be slow, and it is more prone to thrombosis, and it is more prone to myocardial hypoperfusion, including angina pectoris.
The lower the blood pressure, the better. It is not that there will be no symptoms of some diseases if you are in a state of corresponding hypotension for a long time. On the contrary, blood pressure needs to be within a relatively normal and useful range, because it exists as a dynamic factor of organ perfusion, which is very important for blood circulation, so too low blood pressure will cause insufficient perfusion of corresponding organs.