September 14, 2005
Abnormalities of the hair shaft, whether traumatic or acquired, may result in hair breakage (which gives the appearance of failure of the hair to grow) and hair loss. Trichorrhexis nodosa-traumatic fractures of hair shaft-may result from UV exposure, permanent wave procedures, coloring of the hair, or the use of hot combs. The condition may also be congenital. The hairs have a broken, “flyaway” appearance, and characteristic grayish white nodules on the hair shaft can be seen with the naked eye.