An increased tendency of the hair to break: When she was at the dermatologist's, Mrs. Clark asked if there was a remedy for her condition of trichorrhexis with her hair getting more and more brittle over time.

A congenital or acquired condition in which minute nodes are formed in the hair shafts;: Splitting and breaking, complete or incomplete, may occur at these points, or trichorrhexis nodes.

An atrophic condition of the hair, affecting more often the male beard: Trichorrhexis nodosa is characterized by irregular thickenings resembling nodes on the hair shaft that are really partial fractures of the hair. The hairs often break, leaving a brush-like ends; a certain amount of alopecia is thus produced.