Category:Boys by hair length

 See also category: Girls by hair length.

This meta category should only contain other categories. Files should either be in the relevant subcategory or in the parent category.

1. Babies (male) (birth to 24 months)
2. Boys (2–13 years [puberty])
3. Adolescent boys (13–17 years)
4. Men (18+ years)
   • Young men (18–39 years)
   • Middle-aged men (40–59 years)
   • Old men (60+ years)

Definitions come from, but are slightly modified from, the Physical stages of human life as found at Wikipedia:Human development (biology).