Chloasma is a common skin condition characterized by light to dark brown patches on the face, typically on the cheeks, forehead, nose, and chin. It is caused by an increase in the production of melanin, the pigment that gives skin its color. Chloasma usually develops gradually and may worsen with sun exposure. It can be caused by pregnancy, hormonal changes, and certain medications. It is more common in women than men.
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(Филяриатоз, Речная слепота)
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