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What does it mean when a lump in a boys nipple first appeared when he was 10 years old but then went away Now he is 14 and that lump is back is the same right nipple What is it?
Wiki User
∙ 14y ago
It could be a condition called Gynaecomastia, caused by hormonal changes. Always best to see a GP though!
Wiki User
∙ 14y ago
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