Melasma wata matsala ce da ba ta da illa ga fatar jiki da ke wakilta ta bayyanar duhu a fatar jiki, tana yaduwa a cikin mata fiye da maza, musamman a lokacin daukar ciki, bayyanar ta yakan ta'allaka ne a kunci, goshi, kashi na hanci, da gabo, kuma tana iya bayyana a wuyansa da goshi.