Trichonodosis
Acquired trichorrhexis nodosa is much more common and develops as a result of excessive hair
manipulation and overprocessing. Too much brushing, hairstyles that put constant stress on the
hair, and excessive washing, dying, and perming may disrupt the cuticle in focal areas along a
hair shaft. Trichorrhexis nodosa is particularly seen in people who overuse hot combs or permanent
waves to style their hair. Once the cuticle is removed from hair fiber then the hair cortex
swiftly breaks down.