Nevus Anemicus

 Many things in dermatology have long and confusing names that sound alike.  There are tons of growths and abnormalities in the skin that include “nevus” in the name.  Scientifically, a true nevus is a growth of pigment-producing cells called melanocytes. Nevus anemicus has nothing to do with melanocytes.  Go figure! 

Nevus anemicus is an area of the skin that has limited blood flow compared to the surrounding skin.  It leads to a pale area on the skin. It is believed that the affected area of skin has blood vessels that are more often to stay constricted at all times. It is often seen at birth and persists throughout life.  It is not harmful or problematic in any way, and there is no known way of changing it—just a curiosity.  The skin is amazing! 

In dermatology, many topical agents are used to try to modulate blood vessel flow.  Rhofade and Mirvaso are prescription-strength topical agents used in dermatology to slow down blood flow in a given area.  We use them primarily in rosacea to reduce flushing.  Rozatrol is a ZO skincare product for rosacea that also modulates blood flow to reduce flushing. 

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