answersLogoWhite

0

Males and females make both female and male hormones. The ratio we make depends on our sex. Males make more testosterone than females and females make more estrogen than males.

When puberty starts, production of both increases with the dominant one really increasing. Because of this, when a boy starts puberty he also increases his estrogen production. In many boys (about 20%) this causes a temporary growth of breast tissue, a condition called gynecomastia. Nipples will swell, they become more sensitive, they might even get actual breast growth. Fortunately, it's temporary and usually doesn't last more than a year. When testosterone production is at its peak its ratio to estrogen is much higher and the breast symptoms go away.

It's the same reason why older women sometimes begin to grow facial hair (estrogen production drops and the ratio is closer), and men have less facial and body hair (testosterone production drops and the ratio is closer).

User Avatar

Wiki User

10y ago

Still curious? Ask our experts.

Chat with our AI personalities

ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
RossRoss
Every question is just a happy little opportunity.
Chat with Ross
JudyJudy
Simplicity is my specialty.
Chat with Judy
More answers

Yes, this is perfectly normal. The lump behind the breast is called the thelarche, for it to form is normal.

User Avatar

Wiki User

16y ago
User Avatar

stoneys - caused by a higher than normal estrogen level

User Avatar

Wiki User

15y ago
User Avatar

That I totally normal I'm 13 and I have the same thing except one is bigger and the other one is smaller that means that your boobs are going to grow

User Avatar

Wiki User

12y ago
User Avatar

Add your answer:

Earn +20 pts
Q: What are bumps behind the nipple of a 11 year old male?
Write your answer...
Submit
Still have questions?
magnify glass
imp