Derm In-Review > Mnemonic Monday

It’s Mnemonic Monday! Trichorrhexis Nodosa

On this Mnemonic Monday, we challenge you to remember conditions associated with trichorrhexis nodosa with the following mnemonic:


TNTrichorrhexis nodosa
MMenkey’s kinky hair
AArginosuccinic aciduria

Click HERE to download or print your mnemonic card.

Study More!

Need a refresher on hair shaft abnormalities? Check out pages 152-153 of your 2020 Derm In-Review Study Guide.

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Further Reading

Check out the following case report published in the Journal of Drugs in Dermatology (JDD):

Hair and Scalp Disorders in Ethnic Populations


Human hair has been classified into 3 major groups, as determined by ethnic origin. In these populations, significant structural and biochemical variations of the hair follicle and shaft are seen, as well as unique hair grooming practices. These structural variations of the hair are closely linked to the common disorders of the hair and scalp, such as acquired trichorrhexis nodosa, seborrheic dermatitis, traction alopecia, central centrifugal cicatricial alopecia, dissecting cellulitis, frontal fibrosing alopecia, and pseudofolliculitis barbae.

Read the full article here.

Test your knowledge!

All of the following are associated with trichorrhexis nodosa except:

A: Trichothiodystrophy

B: Absent argininosuccinase

C: Netherton’s syndrome

D: Menke’s kinky hair syndrome

E: Bjornstad syndrome

To find out the correct answer and read the explanation, click here.

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