The Silent Skin Sign You Should Never Ignore: What That Net-Like Rash Could Really Mean

It usually becomes more obvious in cold weather, when blood vessels under the skin react to lower temperatures. The result? Blood flow slows or gets a little uneven, causing that “marbled” appearance.

Sometimes, it fades once you warm up. Other times, it lingers—and that’s when it’s worth taking a closer look.

Two Very Different Types: Primary vs. Secondary

Livedo Reticularis isn’t just one thing—it comes in two forms, and the difference between them matters.

1. Primary (Physiological) Livedo Reticularis

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