Winter legs and the web of discoloration

As winter transitions to spring, which brings a different set of seasonal considerations about skin health, we harbor one last trailing thought about the months that have passed—have you ever noticed that a web of discoloration mysteriously shows up on your legs in the winter and then disappears? 

So-called mottling of the skin, known medically as livedo reticularis, presents as blotchiness, occurring most frequently on the legs. It is most commonly brought about by exposure to cold, as vessels in the skin constrict in response to the temperature lowering, reducing blood flow to certain areas and producing the characteristic appearance. Subsequent warming of the skin typically restores the appearance of the skin back to normal. 

It is important to distinguish between this consequence of winter weather and a more persistent temperature-independent presentation, which can be associated with underlying medical problems. When in doubt, always consult a physician to assess.

Posted on March 15, 2026.