The scar on my hand stays clean, no matter how dirty my hands are

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image showing The scar on my hand stays clean, no matter how dirty my hands are

JM1380GT on August 10th, 2020 at 11:59 UTC »

Smooth skin so nowhere for dirt to get stuck?

entregistra on August 10th, 2020 at 12:40 UTC »

That scar tissue is devoid of any sweat glands or hair

TooShiftyForYou on August 10th, 2020 at 13:11 UTC »

Because scar tissue contains no pores to excrete oil, the lack of oil means there's nothing for the dirt to stick to.

This is actually a big concern for people with large burn areas on their body as sweat glands cannot make moisture on the skin surface as they did prior to the injury, which can result in much itching.