Tanner Stage 4 Armpit Hair
Understanding Tanner Stage 4: When Does Armpit Hair Appear?

Learn about the onset of armpit hair growth and its relation to Tanner Stage 4 during puberty.

Pubic Hair Development
Understanding the Stages of Pubic Hair Development

Learn about the Tanner scale stages of pubic hair development during puberty.

Hair Growth in Puberty
When Do Boys Get Armpit Hair vs Pubic Hair? Understanding Puberty Stages

Explore the order of hair development during puberty for boys. Learn about pubic and armpit hair growth and what to expect.