Prolactin is a hormone secreted by what are called the lactotropic cells
, located in the pituitary gland. This hormone is a protein that acts on the mammary glands of the breast to stimulate the production and secretion of breast milk
in women, as well as causing periods to stop following childbirth
. It is present in fluctuating quantities depending on several factors, and increases naturally during pregnancy
and the stage following childbirth to maintain the lactation process and enable breastfeeding
. It can also increase in cases of pituitary adenomas, tumors growing in the pituitary gland, or when certain medication is taken. Hyperprolactinaemia is suspected when two symptoms are observed together: absence or disrupted periods, and secretion from the nipples.
Original article published by
. Translated by Jeff
Latest update on November 12, 2013 at 04:59 AM by Jeff.