A normal blister is clear.
Blisters are small pockets of fluid that form under the skin's surface. This fluid is typically clear and watery, offering protection to the underlying tissue and promoting healing. However, the color of a blister can vary depending on its contents and the underlying cause.
Here's a breakdown of blister colors and what they might indicate:
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Clear: This is the typical color of a blister containing serum, which is a clear fluid derived from blood plasma. This indicates a normal blister caused by friction or minor trauma.
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Red or Black: A blister that appears red or black is likely a blood blister. This means that blood vessels beneath the skin have broken, and blood has collected within the blister.
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Yellow or Green: A yellow or green blister suggests a possible infection. The colored fluid is often pus, indicating the presence of bacteria. An infected blister may also be surrounded by redness and feel warm or painful.
It's important to monitor blisters for signs of infection and seek medical attention if necessary.
