Over-activity of the melanocytes is known as?

Over-activity of the melanocytes, which are the cells responsible for producing melanin (the pigment that gives skin its color), is known as melanoderma. This condition can lead to hyperpigmentation, where there is an excess of pigment in certain areas of the skin. Melanoderma is characterized by dark patches or an overall increase in skin color caused by the overstimulation of melanocytes, often due to factors like sun exposure, hormonal changes, or certain medications.

In contrast, terms like hypopigmentation and leukoderma refer to conditions where there is a decrease in pigmentation, while cirrhosis pertains to a liver condition and is unrelated to the pigmentation of the skin. Understanding these distinctions helps clarify the role of melanocytes in skin color regulation and the effects of their abnormal activity.