Melanoma yawanci yakan faru ne a cikin fata, amma yana iya faruwa a cikin baki, hanji, ko ido. A cikin mata, sun fi faruwa a kafafu, yayin da a cikin maza sun fi kowa a baya. Wani lokaci suna tasowa daga wani nau'i tare da canje-canje irin su karuwa a cikin girman, gefuna marasa daidaituwa, canji a launi, itchiness, ko lalacewar fata. Babban dalilin melanoma shine hasken ultraviolet (UV) a cikin wadanda ke da ƙananan matakan fata na fata. Hasken UV na iya zama daga rana ko daga wasu na'urori, kamar tanning. 25% daga moles.
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