Trichorrhexis may have a genetic basis but appears to be precipitated by environmental factors.

These conditions are directly related to environmental causes such as "perming", blow drying, aggressive hair brushing, and excessive chemical exposure.

Examination of the hair shafts with a microscope may reveal changes of trichorrhexis nodosa.

Avoid aggressive brushing and grooming, strong chemicals, permanents, straightening, and similar hair-damaging habits.

Improvements in grooming techniques and in environmental conditions will correct the abnormality.