A member asked:

My son is 7 and has a small lump under his one nipple - seems like a breast bud, is this common in boys?

A doctor has provided 1 answer

Yes, this is common. As boys develop, they actually usually produce a bit of estrogen before they begin to produce testosterone. The estrogen may cause slight development of breast buds. These usually last a year or two, then disappear once testosterone production predominates. Don't worry - everyone, male and female, have some breast tissue.

Answered 3/4/2021

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