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Extra nipples or breast tissue is fairly common. It is a result of incomplete regression of the mammary ridge, also known as the milk line and happens the during development of the embryo before birth.
By Lori J. Isenstadt IBCLC4.6
102102 ratings
Extra nipples or breast tissue is fairly common. It is a result of incomplete regression of the mammary ridge, also known as the milk line and happens the during development of the embryo before birth.