Melasma is type of skin discoloration issue that is cause by the over production of melanin in the skin melanoncytes cell. Melasma can be cause by hereditary. Melasma is usually caused as a result of contact with a chemical or harmful substances. Melasma can also be cause by living conditions and life style. Melasma can be triggered by a lot of things such as bacterial infection or fungus infection. Melasma caused by fungus can happen as a result of the skin coming in contact with an infected products or substance. Melasma can be treated with topical products and oral supplements. Causes of Melasma Eating an unbalanced diet. Living a poor lifestyle. Persistent cigarette smoking. Too much sun exposure. Bad sleeping habit. Using hard drugs and illegal substances. Not using skin protection.