BMJ 2008; 336 doi: https://doi.org/10.1136/bmj.39525.399132.80 (Published 27 March 2008) Cite this as: BMJ 2008;336:728
  1. Rosalione C Gait, ST2 ,
  2. Graham A Johnston, consultant
  1. 1department of dermatology, Leicester Royal Infirmary, Leicester LE1 5WW
  1. rozgait{at}doctors.org.uk

    A 21 year old British Asian woman presented with multiple lesions consistent with viral warts in a strikingly symmetrical pattern below the eyebrows. The lesions followed a pattern of previous hair growth. On further questioning, she admitted to having her eyebrow hair removed using the technique of “threading,” where twisted cotton threads are used to pull out a row of hairs. This is an ancient method of hair removal originating in India, but it is gaining popularity in Western countries. This case demonstrates the phenomenon of auto-inoculation of the human papillomavirus along the line of the threading material. She was treated with gentle cryotherapy.

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