Puberty: As breasts begin to develop there is some pain involved and it often occurs more in one breast than the other at the beginning. Usually the size evens out over time.
Answered 9/29/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 3 answers
A doctor has provided 1 answer
4 doctors weighed in across 3 answers
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