What is the Difference Between Melasma and Chloasma?

Melasma and chloasma are terms used to describe the same skin condition, which is characterized by dark patches (hyperpigmentation) on the face. The difference between the two lies in the context in which they are used:

• Melasma: This term is generally used to describe the skin condition in both men and women, regardless of whether it is associated with pregnancy or not.
• Chloasma: This term is specifically used to describe melasma that appears in pregnant women, and it is often referred to as "the mask of pregnancy".

Both melasma and chloasma are caused by an increase in facial pigmentation, which is related to hormonal changes and exacerbated by sun exposure. The pigment-producing cells in the skin, known as melanocytes, become overactive and produce too much melanin, leading to hyperpigmentation. Although there is no cure for this condition, treatments can be very helpful.

Comparative Table: Melasma vs Chloasma

Melasma and chloasma are both skin conditions that cause dark patches on the face, but they have different triggers and are more common in specific populations. Here is a table outlining the differences between the two:

In summary, melasma is caused by sun exposure and is more common in women and people of color, while chloasma is a hormonally related increase in facial pigmentation triggered by hormonal changes during pregnancy. Both conditions result in dark patches on the face, but they have different causes and typically affect different populations.