Video:Bubble hair deformity

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Bubble hair deformity is damage of the hair shaft.[1]


It generally presents as patches of short weak brittle hair that feels rough.[1] It can be associated with trichorrhexis nodosa and trichoptilosis.[2]


The cause is typically chemicals and heat, particularly with temperatures greater than 125°C on wet hair, such as with the use of hair dryers, hair straighteners and curling tongs.[2]


Diagnosis is by its appearance and can be confirmed by microscopy, where it is characterized by rows of tiny bubbles seen microscopically within localized areas of the brittle hair.[3][3] These air-filled spaces occur in the cortex of the hair shaft that correspond to the breakdown of keratin and local air expansion triggered by hot water passing through the shaft.[2] There may be an inherited predisposition.[4]


Avoiding excessive heat and chemicals can prevent and improve the condition.[2]


  1. 1.0 1.1 Bhat, Yasmeen Jabeen; Sheikh, Gousia (2018). "13. Clinical bedside investigations". In Chandrashekar, B. S. (ed.). IADVL Textbook of Trichology. New Delhi: JP Medical Ltd. ISBN 978-93-5270-391-3. Archived from the original on 2023-06-30. Retrieved 2023-06-02.
  2. 2.0 2.1 2.2 2.3 Giacaman, A.; Ferrando, J. (1 February 2022). "[Translated article] Keys to the Diagnosis of Hair Shaft Disorders: Part I". Actas Dermo-Sifiliográficas. 113 (2): T141–T149. doi:10.1016/ ISSN 0001-7310. PMID 35244576. Archived from the original on 20 April 2022. Retrieved 19 April 2022.
  3. 3.0 3.1 James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "33. Diseases of the skin appendages". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 766. ISBN 978-0-323-54753-6. Archived from the original on 2023-06-30. Retrieved 2023-06-02.
  4. "Defects of the hair shaft". Archived from the original on 6 April 2022. Retrieved 18 April 2022.