The size of a woman's breast is closely related to heredity, which is mainly influenced by the level of estrogen in the body. If the breast is overgrown and belongs to macromastia, you can take surgical reduction treatment, and the cost should be about 30 thousand yuan. As for what you said, if the breast is too big, you should go to a regular hospital as soon as possible to find out the cause, and you can take surgical treatment.