In cases of keratosis the skin becomes?

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If you hit the spot hard enough.

Dry skin can be caused by a disease or condition when more serious. Most of the time, chapped or dry skin is because you are not getting enough water (dehydrated). Without the extra moisture, your...

Not exactly. Excess skin (due to weight loss) is because the fat and muscle that was stretching the skin diminishes faster than the skin can shrink, or that the elasticity in the skin cannot cause it...

When you hit or scratch skin, blood moves to that place in your body. The blood makes the skin look red.