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July 22, 2019

Male Pubertal Timing—Boys Will Be Men, but When?

Author Affiliations
  • 1Pediatrics, Stead Family Children’s Hospital, Carver College of Medicine, University of Iowa, Iowa City
  • 2Pediatrics, School of Medicine and Public Health, University of Wisconsin, Madison
  • 3Division of Diabetes and Endocrinology, Endocrinology/Diabetes Fellowship Program, University of Wisconsin American Family Children’s Hospital, Madison
JAMA Pediatr. 2019;173(9):819-820. doi:10.1001/jamapediatrics.2019.2306

Puberty represents the complex transition from childhood to adulthood characterized by linear growth acceleration and sex hormone–mediated physical changes followed by reproductive capability and skeletal maturity. The timing varies widely and is affected by genetic and environmental factors. Age at sexual maturity in females has progressively declined during the past 2 centuries, with an earlier age of pubertal onset and menarche in females being driven in part by increased adiposity.1