The effect of brushing on hair loss in women

J Dermatolog Treat. 2009;20(3):152-5. doi: 10.1080/09546630802512661.


Background: Hair loss is a common, bothersome problem among women.

Objective: To evaluate the effect of different brushing frequencies on hair loss in women.

Methods: This was a non-randomized crossover study. During a 4-week period, 14 women were asked to brush their hair with different frequencies during each of the 4 weeks. The amount of hairs lost during each week was counted and the average hairs lost during each week was compared with that of a week with a different brushing frequency.

Results: In all comparisons analyzed, hair loss was reduced by reducing brushing frequency. A subgroup analysis found strong association (p < 0.05) between brushing frequencies and the magnitude of hair loss. A limitation of the study was that the majority of the subgroup analyses did not find a statistically significant association between brushing frequency and amount of hair lost.

Conclusion: Brushing is associated with hair loss. Reducing the brushing frequencies may reduce the amount of hair shed.

Publication types

  • Clinical Trial
  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Alopecia / etiology*
  • Alopecia / physiopathology
  • Confidence Intervals
  • Cross-Over Studies
  • Female
  • Humans
  • Hygiene*
  • Middle Aged
  • Risk Assessment
  • Self Care / methods*
  • Time Factors
  • Young Adult