What Type of Condition Is Plaque Psoriasis?
Plaque psoriasis is caused by the rapid turnover of skin cells due to overactivity in the immune system, says Dendy Engelman, MD, a dermatologic surgeon with Metropolitan Hospital Center. Learn more in this video.
So in psoriasis, we actually have upregulation
of the immune system, where your body is functioning too quickly in turning over the epithelial cells. And so usually the lifespan of a cell
at the base of the epidermis takes about 28 days to rise to the top, where it's sloughed off. But in psoriasis, that's much accelerated,
and it takes about 7 to 10 days for that to occur. So it's actually overactivity of the immune system.
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