Damage to these valves can result in the blood to pool while in the lessen part of the human body, such as the legs and ft. The health care time period for this is Long-term venous insufficiency (CVI). Peripheral arterial disease. This could trigger claudication. That is agony within the thigh, https://www.sgvascularctr.com/a-comprehensive-guide-to-vascular-services-and-treatments-in-singapore/