May 13, 2022
Puberty development: Stage 1 (early development)
Female | Male | |
hormones | Estrogen increases from age 9 or 11, continue to increase slightly to age 20 | Testosterone increases from age 10 to 12, and continue to increase slightly to age 20 |
Reproductive organs | Ovaries will be enlarged (each healthy female has two ovaries inside the body) | Testicles will be enlarged (each healthy male has two testicles inside the body) |
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