Darkening
Darkening
Darkening (/dɑːrkənɪŋ/) is a medical term often used to describe the change in color of the skin or nails, usually due to underlying health conditions. It can also refer to the change in color of body fluids or internal organs in certain medical conditions.
Etymology
The term "darkening" originates from the Old English word "deorcian," which means to become dark or to darken. In the medical context, it has been used since the late 19th century.
Related Terms
- Hyperpigmentation: An increase in the melanin production in the skin, leading to dark patches or spots.
- Melasma: A specific type of hyperpigmentation that often occurs during pregnancy.
- Acanthosis Nigricans: A skin condition characterized by dark, velvety discoloration in body folds and creases.
- Liver Spots: Flat, brown or black spots that usually appear on areas exposed to the sun.
- Nail Discoloration: Change in color of the nails, which can be a sign of fungal infection or underlying disease.
See Also
External links
- Medical encyclopedia article on Darkening
- Wikipedia's article - Darkening
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