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Dr. Dean

Uneven Breast Development Normal, Says Mayo Clinic Doctor

Posting Date: 09/06/1999

Original broadcast date: August 20, 1999

Asymmetrical breast development ? where one breast grows faster than the other in young girls ? is a fairly common phenomenon that prompts a lot of calls from concerned parents.

There?s rarely anything to be worried about. In fact, the medical director of pediatric and adolescent gynecology at the Mayo Clinic says it?s normal for there to be a six-month lag between the development of one breast and the other.




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Eventually, the breasts even out, says Patricia Simmons, M.D. She says physicians should be cautious in investigating any differences in breast tissue size too aggressively.

Some physicians unfamiliar with menarche ? or puberty ? could damage a breast bud by ordering a biopsy on a firm, unilateral lump, Simmons told a meeting of the North American Society for Pediatric and Adolescent Medicine. Such a procedure should only be done if a lump is persistent, or is present at an early age before breast development starts.

In other words, asymmetrical breast growth should be considered normal. If size differences are consistent after puberty, a saline implant can be used in the smaller breast to gradually enlarge it.

Source: Family Practice News, August 1999


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