Inability to Grow Long Hair: A Presentation of Trichorrhexis Nodosa
Trichorrhexis nodosa (TN) is a congenital or acquired hair shaft disorder that is characterized by fragile and easily broken hair. Dermatologists who see patients with hair fragility and inability to grow long hair should consider the diagnosis of TN. Acquired TN often is reversible.
Dermatologists who see patients with hair fragility and inability to grow long hair should consider the diagnosis of TN. Acquired TN often is reversible. Complete resolution may take 2 to 4 years depending on the growth of new anagen hairs. All patients with a history of white flecking on the scalp, abnormal fragility of the hair, and failure to attain normal hair length should be questioned about their routine hair care habits as well as environmental or chemical exposures to determine and remove the source of physical or chemical trauma.
