How does the melted skin (caused by friction) in blisters become clear?

I am taking advanced study courses at Pepperdine. I have an exam in Human Anatomy on Thursday. I have always known that blisters were caused by the friction melting the skin, but I do not understand how it turns clear. Shouldn’t it be flesh colored? Thank you in advance for your responses.

Sincerely,
Geraldine H.

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3 comments

  • You’re absolutely right about the melting thing. The reason it turns clear is because a very very paper thin layer of skin melts, this layer is almost transparent, and when mixed with oxygen the liquid skin turns clear. Good luck, you’re gonna rock that exam!

  • isnt the plasma clear?

  • How blisters work is they don’t "melt the skin" per say. Something rubs on the skin, causing irritation and the few top layers to detach or separate from the very sensitive under layers. This skin is held on still, but it is no longer sticking to the under layers. This irritation causes a fluid bubble to build up as a cushion for the under lays of skin. The fluid is not a result of purified or melted pieces of skin, it seeps through your skin and into the bubble. When you get a blood blister, it just means that blood seeped through the under layer of skin and into the bubble as well as clear fluid.

    Have fun failing your exam.

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