Trichorrhexis nodosa
Trichorrhexis nodosa
Trichorrhexis nodosa (pronunciation: trik-or-HEK-sis no-DOH-suh) is a structural anomaly of the hair in which thickened or weakened nodes (or nodules) form along the hair shaft resulting in breakage.
Etymology
The term "Trichorrhexis nodosa" is derived from the Greek words "trichos" meaning hair, "rrhexis" meaning rupture, and "nodosa" referring to the nodular appearance of the hair shaft.
Definition
Trichorrhexis nodosa is a condition characterized by nodes or white spots along the hair shaft, which is often associated with hair breakage. It can be either congenital (present from birth) or acquired. The condition can affect any hair on the body, but it is most commonly seen on scalp hair.
Causes
The condition can be caused by a variety of factors including genetic disorders, such as Menkes disease and Argininosuccinic aciduria, and environmental factors, such as excessive heat or chemical damage from hair treatments.
Symptoms
Symptoms of Trichorrhexis nodosa include dry and brittle hair that breaks easily, often with a brush-like appearance at the ends. The hair may also appear dull and lackluster.
Treatment
Treatment for Trichorrhexis nodosa typically involves avoiding practices that can damage the hair, such as excessive brushing, heat styling, and chemical treatments. In some cases, treating an underlying medical condition can help to improve the health of the hair.
Related Terms
External links
- Medical encyclopedia article on Trichorrhexis nodosa
- Wikipedia's article - Trichorrhexis nodosa
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