A com symptom to show the presence of this skin discoloration is the appearance of dark spots found on the face, forehead, and even the nose. Another factor that may affect in the development of discoloration is the genetic factor.

How do you determine if a person has a Melasma. The dark discoloration on the skin is a result of over production of melanin on the skin and at the same time, exposure to the sun. Melasma can be diagnosed by merely looking at the skin.

Wood's lamp can be used also to determine melanin. It will take some time before these discolorations were formed.

For pregnant women, internal hormonal change during pregnancy is the reason of the appearance of dark spots. It is also the result of external hormones like birth control pills. Melasma is a dark skin discoloration on the skin. Its most com victims are women, especially pregnant women, that is why it is called "mask of pregnancy".

It does not appear only on the face, it appears also on the other areas of the skin like the forearms.