Dyschromia
Dyschromia
Dyschromia (pronounced dis-KROH-mee-uh) is a medical term used to describe changes in the color of the skin. It can refer to both hyperpigmentation (darkening of the skin) and hypopigmentation (lightening of the skin).
Etymology
The term "dyschromia" is derived from the Greek words "dys", meaning "bad" or "difficult", and "chroma", meaning "color". Thus, dyschromia essentially means "difficult color", referring to the abnormal coloration of the skin.
Types of Dyschromia
There are several types of dyschromia, including:
- Melasma: This is a type of hyperpigmentation that often occurs during pregnancy or as a result of hormonal changes. It is characterized by dark, irregular patches on the face.
- Vitiligo: This is a type of hypopigmentation where the skin loses its pigment cells, resulting in white patches of skin.
- Post-inflammatory hyperpigmentation (PIH): This is a type of hyperpigmentation that occurs as a result of skin inflammation or injury. It is characterized by dark spots or patches that remain after the initial inflammation or injury has healed.
Causes
Dyschromia can be caused by a variety of factors, including sun exposure, hormonal changes, skin inflammation or injury, certain medications, and certain medical conditions such as melanoma or lupus.
Treatment
Treatment for dyschromia depends on the underlying cause and may include topical creams, laser therapy, chemical peels, or oral medications. It is important to consult with a dermatologist for an accurate diagnosis and treatment plan.
Related Terms
External links
- Medical encyclopedia article on Dyschromia
- Wikipedia's article - Dyschromia
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