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  • With Mayo Clinic dermatologist

    Lawrence E. Gibson, M.D.

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Question

Shaving hair: Does shaved hair grow back thicker?

Is it true that shaving unwanted body hair makes it grow back thicker and darker?

Answer

from Lawrence E. Gibson, M.D.

No — shaving hair doesn't change its thickness, color or rate of growth.

Shaving facial or body hair gives the hair a blunt tip. The tip might feel coarse or "stubbly" for a time as it grows out. During this phase, the hair might be more noticeable and perhaps appear darker or thicker — but it's not.

Consult your doctor if you notice a sudden increase in facial or body hair. This could be a medication side effect or a sign of an underlying medical condition.

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References
  1. Martin KA, et al. Evaluation and treatment of hirsutism in premenopausal women: An endocrine society clinical practice guideline. Journal of Clinical Endocrinology and Metabolism. 2008;93:1105.
  2. Removing hair safely. U.S. Food and Drug Administration. http://www.fda.gov/ForConsumers/ConsumerUpdates/ucm048995.htm. Accessed July 21, 2011.
AN00638 Oct. 26, 2011

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