Progesterone is a steroid hormone made primarily in the ovaries but also by the placenta during pregnancy. Progesterone acts with other female hormones, such as estrogen, to maintain female reproductive health and female sex characteristics. It has several effects on breast tissue during puberty, menstruation and pregnancy.
During puberty, estrogen is the hormone mainly responsible for breast growth. During your reproductive years, progesterone is one of the hormones responsible for activating your mammary glands, so your breasts can produce milk. When you become pregnant, progesterone stimulates the glandular tissue to .
Progesterone is an ovarian steroid hormone that is essential for normal breast development during puberty and in preparation for lactation and eazye.info by:
Your breasts needs progesterone as well as estrogen to grow. It is progesterone that activates estrogen receptors so that estrogen can bind to them. Progesterone is also the hormone responsible for building up fat stores in the breast.