Livedo reticularis describes a net-like, reddish-purple discoloration of the skin, most often seen on the legs, arms, or torso. It develops when blood in the small vessels beneath the skin flows unevenly or pools, creating visible patches where oxygen supply is lower.
While livedo reticularis can sometimes be little more than a harmless response to cold, it can also be your body’s way of signaling that something more serious is happening beneath the surface.
Persistent or unexplained cases should never be ignored. Recognizing the difference between temporary, benign changes and signs of systemic illness is essential. By paying attention to your skin—and seeking medical guidance when needed—you
can catch potential health problems early, when they’re most treatable.
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