Trichorrhexis Nodosa

Trichorrhexis nodosa is hair-shaft defect with brittle nodes/fractures from repeated chemical/mechanical trauma (perms/relaxants/heat/brushing) or congenital/biotin deficiency/argyria. Treatment: avoid chemical/heat trauma; gentle hair care; wide-tooth comb; biotin supplementation; correct nutritional deficiency; treat congenital cause; reassurance; follow-up dermatology/trichology; distinguish from monilethrix/uncombable hair syndrome.

Common Symptoms

Brittle hair; nodes/fractures; by chemical/trauma/nutrition

Causes and Pathogenesis

Mechanical/chemical damage weakens hair cortex causing nodal fractures.

Treatment

Avoid chemicals/heat; gentle care; biotin; treat cause

Preventive Measures

Gentle hair care; avoid perms/relaxants/heat; wide comb.

Department to Visit

It is recommended to visit the Dermatology/Trichology department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.