Why freckles

summary

I have a colleague who is very beautiful and has very white skin. Her job is to travel everywhere. This summer, the weather is very hot. She went out for a month and grew a lot of freckles on her face after she came back. She is worried to death. I don't know why she grows freckles. Now I'm going to popularize science for you.

Why freckles

First: freckles occur on the face of the skin yellowish brown punctate pigmentation spots, Department of autosomal dominant inheritance. Sun exposure can induce and aggravate skin lesions. Genetic tendency, autosomal dominant inheritance. Sun exposure is an essential factor for the occurrence of skin rash. It is an autosomal dominant genetic disease. Freckles of the same pattern can occur continuously in the same part of a family for several generations. Excessive sun exposure or ultraviolet radiation can promote and aggravate the disease.

Second: freckles are a kind of light brown small spots, needle tip to the size of rice, freckles often appear in the forehead, nose and cheek, freckles occasionally appear in the neck, shoulder, back of hand and other places. Freckles do not have any subjective feelings or other effects except for the beauty. The evaluation of freckles is different, some people think that freckles affect beauty, some people think that freckles can make girls look lively and lovely.

Third: freckles is a common facial skin disease, occurs in the face, neck, back of hand and other parts of the sun. The onset of the disease in preschool children, a small number of onset from adolescence, more women than men, more with family history. Most of the lesions were round or oval, light yellow or brown spots, ranging from needle tip to sesame size, scattered or dense, symmetrically distributed, without self-conscious symptoms and slow course of disease.

matters needing attention

There are many reasons for the formation of freckles, genetic history is a very important factor, in addition, long-term exposure to ultraviolet light will also lead to freckles, so, to prevent freckles, we should pay attention to avoid sunlight, do a good job in sun protection, especially in summer, ultraviolet light is relatively strong, freckles symptoms will be improved in winter.