Physiology of blushing A blush is a reddening of the cheeks and forehead brought about by increased capillary blood flow in the skin. It can also extend to the ears, neck and upper chest, an area termed the 'blush region'.  There is evidence that the blushing region is anatomically different in structure. The facial skin, for example, has more capillary loops per unit area and generally more vessels per unit volume than other skin areas. In addition, blood vessels of the cheek are wider in diameter, are nearer the surface, and visibility is less diminished by tissue fluid. These specific characteristics of the architecture of the facial vessels led Wilkin in an overview of possible causes of facial flushing to the following conclusion: "[...] increased capacity and greater visibility can account for the limited distribution of flushing".Journal of the American Academy of Dermatology, Wilkin. 1988 
Physiology of blushing A blush is a brought about by increased capillary blood flow in the skin. It can also extend to the ears, neck and upper chest, an area termed the 'blush region'. This leads to a reddening of the skin in people who have lighter skin, including those with albinism. In darker-skinned people, the skin may appear more shiny, or it may be barely noticeable to others. There is evidence that the blushing region is anatomically different in structure. The facial skin, for example, has more capillary loops per unit area and generally more vessels per unit volume than other skin areas. In addition, blood vessels of the cheek are wider in diameter, are nearer the surface, and visibility is less diminished by tissue fluid. These specific characteristics of the architecture of the facial vessels led Wilkin in an overview of possible causes of facial flushing to the following conclusion: "[...] increased capacity and greater visibility can account for the limited distribution of flushing".Journal of the American Academy of Dermatology, Wilkin. 1988 Again, this “flushed” color does not apply to darker-skinned individuals.
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reddening of the cheeks and forehead
A
This leads to a reddening of the skin in people who have lighter skin, including those with albinism. In darker-skinned people, the skin may appear more shiny, or it may be barely noticeable to others.
A
Again, this “flushed” color does not apply to darker-skinned individuals.