How much is the difference between upper limb blood pressure and lower limb blood pressure

The blood pressure of upper limbs and lower limbs is generally different in 20-40mmHg.

Because the blood vessels of lower limbs are far away from the heart, the circulating blood volume is relatively large. Under normal circumstances, the blood pressure of lower limbs is higher than that of upper limbs. The pulse pressure difference is generally within 20-40mmHg. If it exceeds this range, it generally indicates that there may be pathological changes in the body, which may be caused by abdominal aortic stenosis, arteritis, arteriosclerosis obliterans, etc. It is necessary to seek medical attention in time to clarify the cause, and take targeted treatment to control the development of the disease.

In daily life, we should pay more attention to low-salt diet and carry out appropriate sports to maintain cardiovascular health.