GuidelineEvidence: Official guidelineAges 9–17Boys
Physical Development in Boys: What to Expect
Author or publisher American Academy of Pediatrics Published updated regularly Reviewed by Edustack editors Last checked 13 Nov 2026
1What parents should know
What physical changes to expect in boys during puberty and roughly when they happen.
2Source and checks
https://www.healthychildren.org/English/ages-stages/gradeschool/puberty/Pages/Physical-Development-Boys-What-to-Expect.aspx American Academy of Pediatrics. Physical Development in Boys: What to Expect. Link working · 13 Nov 2026 · checked automatically every month
Related
Guideline Evidence: Official guideline Ages 8–16
Physical Development in Girls: What to Expect During Puberty What physical changes to expect in girls during puberty and roughly when they happen.
American Academy of Pediatricsupdated regularly