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Updated: Aug 3, 2025

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
Published on: March 9, 2015
A child with generalized hypertrichosis due to secondary topical minoxidil exposure
Giulio Maltoni1, Stephano Cedirian2,3, Andrea Scozzarella4
1Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
Abstract:
Hypertrichosis is defined as excessive hair growth anywhere on the body in either males or females. It may be caused by genetic conditions, endocrinological disorders, exposure to specific medications (including phenytoin, minoxidil and diazoxide) and other less frequent causes. We report the case of a 1-year-old boy with a family history of thyroid disease and alopecia areata who presented with generalized hypertrichosis due to secondary exposure to topical minoxidil. We discuss an uncommon cause of hypertrichosis and the importance of considering a wide differential diagnosis.
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