Question

6 changes that happen in boy's and girl's bodies

Answer 1

Here are six common changes that occur in both boys’ and girls’ bodies during puberty, with brief notes on how they may differ by sex and typical timing. Timing varies widely — some start earlier or later and that’s usually normal.

1. Growth spurt (height and weight)
- What happens: Rapid increase in height and weight, longer limbs.
- Differences: Girls usually start this earlier (around 9–14) and finish sooner; boys often start later (around 11–16) and tend to grow taller overall.

2. Changes in reproductive organs and sexual development
- Boys: Testes and penis enlarge; sperm production begins.
- Girls: Breasts develop; ovaries start releasing eggs; menstrual periods begin (menarche).
- Typical onset: Girls often start breast development 8–13; boys’ testicular enlargement often begins 9–14.

3. Body hair growth
- What happens: Pubic hair appears, then underarm hair; later facial and chest hair in many boys.
- Differences: Both sexes get pubic/underarm hair; boys tend to get more coarse facial and body hair.

4. Skin and hair changes (oily skin, acne)
- What happens: Hormonal changes increase oil production in skin and scalp, often causing pimples or acne.
- When: Common during puberty for both sexes.

5. Voice and physical appearance changes
- Boys: Voice deepens as the larynx grows; Adam’s apple becomes more noticeable.
- Girls: Voice may mature subtly; overall body shape changes (hips widen).
- Both experience changes in body shape and proportions.

6. Increased sweating, body odor, and changes in body composition
- What happens: Sweat glands become more active, producing stronger body odor; muscle and fat distribution shifts.
- Differences: Boys generally gain more muscle mass; girls generally gain proportionally more body fat around hips and thighs.

Quick notes:
- Emotional changes (mood swings, stronger feelings) and changes in sleep patterns are common too because of hormonal and brain development.
- If puberty starts very early or very late, causes pain, extremely heavy bleeding, or other concerning symptoms, contact a healthcare provider.