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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is The Size Of Breasts Genetically Linked?

hello, im 15, im a 34c, and i wanted to know, do you think that i will get bigger, what size do you think i will most likely be, im 5'11. i'm asking this question because my mom says i won't get bigger, so there is no need to buy more bras, because big breast don't run in the family, but i think she's wrong, my cousin has 34dd, and im not sure if i'll follow in
Wed, 6 Aug 2014
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Pediatrician,  's  Response
Breast size is genetically linked, but can be influenced by factors such as nutrition and monthly hormonal cycles. While breast size, age of onset of periods, and similar factors may be similar between mothers and daughters, the genetics of this extends beyond just parents and the characteristics of other relatives may also be predictive. The pattern of growth in aunts and first cousins may also indicate some possibility for further changes. It is impossible to predict final size, however. For these things, sometimes "time will tell" is the only real answer.
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Note: For detailed guidance on genetic screening consult a genetics specialist
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Is The Size Of Breasts Genetically Linked?

Breast size is genetically linked, but can be influenced by factors such as nutrition and monthly hormonal cycles. While breast size, age of onset of periods, and similar factors may be similar between mothers and daughters, the genetics of this extends beyond just parents and the characteristics of other relatives may also be predictive. The pattern of growth in aunts and first cousins may also indicate some possibility for further changes. It is impossible to predict final size, however. For these things, sometimes time will tell is the only real answer.