Reactive hyperaemia is the increase in blood flow following arterial occlusion. The exact mechanisms mediating this response in skin are not fully understood.

What causes reactive Hyperaemia?

Active hyperemia is caused by an increased flow of blood into your organs. It usually happens when organs need more blood than usual. Your blood vessels widen to increase the supply of blood flowing in.

Is reactive hyperemia good?

Reactive hyperemia (RH) is a well-established technique for noninvasive assessment of peripheral microvascular function and a powerful predictor of all-cause and cardiovascular morbidity and mortality (3, 52, 53, 68, 83).