At what age do boys usually enter puberty?

• A. 8 to 10 years
• B. 10 to 15 years
• C. 12 to 16 years
• D. 14 to 18 years

Answer: (B)

Puberty in boys starts in early adolescence as the body’s hormones begin driving physical changes. The first clear sign is usually enlargement of the testicles, followed by the appearance of pubic hair, then a growth spurts, voice changes, and later facial hair. This process typically begins around ages 9 to 14, with many boys starting closer to 10–12 and continuing through the mid-teens. The range that best represents this starting window is 10 to 15 years, because it captures the common onset period and accommodates individual variation. The other ranges either describe ages before puberty begins or reflect later stages when puberty is already underway.