Breast growth
occurs in five stages, beginning with the onset of puberty and continuing until you have reached full maturity. The age at which breasts begin to grow and how quickly they grow are determined by individual genetics.
Pubertal Buds
Puberty will normally begin in girls around the ages of 8 to 13. Breast development at this time will be in the form of a small "bud". This is just a small bump on the chest behind the nipple.
Bud and Continued Growth
During this stage, the breast bud continues to grow in size and shape. Inside the breasts, milk ducts are growing along with fat deposits. Estrogen production has started during this stage.
Further Growth
In the third stage of breast growth, fat continues to be deposited and the breast shape becomes fuller and rounder.
Separation of the Nipple and Areola
During this stage, the nipple becomes a separate mound from the areola. Some girls will skip this stage and go directly to the final stage of breast growth.
Final
The fifth stage of breast growth is the final stage. The breasts at this point have a fuller and rounder shape due to the full development of the glands inside the breasts and the deposition of fatty tissue.
Ages
Just as there is no exact age that puberty begins, there is no set time frame for these developmental changes to occur. Some girls will develop their breasts very quickly and some will take more time. In either case, most girls are done developing around five years after puberty has fully kicked in.
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