- Keratosis: keratosis is commonly caused on the fair skinned people due to the sun exposure. It seems like small spots or lesions on the face, back of the neck, ear, scalps, forehead, upper arms and hands, all these are common locations of keratosis. it is also called solar keratosis. It can cause in any age although particularly in young age. the sign and symptoms of keratosis includes small red and white bumps with itching (sometimes). It also cause skin dry and rough. It become worse in winters with itch, dry and rough skin due to low humidity.
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