formation of dark spots of the four causes of the formation of dark spots many reasons

formation of dark spots of the four causes of the formation of dark spots many reasons, more complex types. but We are the most common spots are freckles and melasma, which is how it formed? genetic reasons. autosomal inheritance is the main cause of freckles. more than years old children from the beginning, mostly women, spring Summer weight, herve leger autumn and winter light. light brown to brown tip to the grain size of the spots, symmetrical distribution on the face especially nose. ultraviolet radiation. ultraviolet radiation in sunlight is an important reason for the formation of dark spots This is also the reason why summer needs sun. When the skin to accept too much sunlight, the skin will produce more melanin granules, which can absorb ultraviolet radiation, protecting the body from harm. all black skin after sun exposure is the truth.
Moreover, the ultraviolet herve leger dress radiation can cause chloasma, freckles darker color normal. endocrine causes. endocrine disorders is also the female produces an important cause of dark spots, menstruation and pregnancy hormone levels in vivo changes can affect melanin production. In addition, the endocrine instability is usually caused by emotional instability, would herve leger bandage dress indirectly lead to formation of dark spots. lifestyle issues. pressure, partial eclipse, the bad sleep habits also that increased melanin. So who sleep instability, poor skin's metabolic rate will affect the production of melanin granules.