Birth marks
Birth Marks
Birth marks (pronunciation: /ˈbɜːrθ mɑːrks/) are a common type of skin discoloration that appear at birth or shortly thereafter. They can appear anywhere on the body and vary in color, size, and shape.
Etymology
The term "birth mark" comes from the belief that these marks were caused by the events or conditions of one's birth. The term has been used in English since at least the late 16th century.
Types of Birth Marks
There are two main types of birth marks: vascular birthmarks and pigmented birthmarks.
- Vascular birthmarks are caused by abnormal blood vessels in or under the skin. Examples include hemangiomas and port-wine stains.
- Pigmented birthmarks are caused by clusters of pigment cells. Examples include Mongolian spots, café-au-lait spots, and moles.
Causes
The exact cause of birth marks is unknown, but they are thought to occur as a result of a combination of genetic and environmental factors. Some birth marks have been associated with certain genetic conditions, such as neurofibromatosis and Sturge-Weber syndrome.
Treatment
Most birth marks are harmless and do not require treatment. However, some may cause health problems or cosmetic concerns. Treatment options include laser therapy, surgery, and medication.
Related Terms
- Dermatology: The branch of medicine dealing with the skin and its diseases.
- Melanin: The pigment that gives human skin, hair, and eyes their color.
- Nevus: A medical term for a mole or birth mark.
External links
- Medical encyclopedia article on Birth marks
- Wikipedia's article - Birth marks
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