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Prolactin is a hormone made by the pituitary gland that the breasts to grow and make milk during pregnancy and after birth. Prolactin levels are normally high for pregnant women and new mothers. Levels are normally low for nonpregnant women and for men. If prolactin levels are higher than normal, it often means there is a type of tumor of the pituitary gland, known as prolactinoma.
Hyperprolactinemia means you have higher-than-normal levels of prolactin in your blood. This is typically caused by a benign tumor in your pituitary gland known as a prolactinoma. Prolactinoma also reduces the level of sex hormones.
High prolactin levels in women cause the following:
High prolactin levels in men cause:
There are no specific causes of high prolactin levels in women. But, several factors contribute to your risk of this condition. Some causes include:
If you experience the signs and symptoms of prolactinoma, your doctor will recommend the following diagnostic method:
The goal of treating prolactinoma is to return the production of prolactin to within the standard range and reduce the size of the prolactinoma. Oral medications known as dopamine agonists are generally used to treat prolactinoma. Cabergoline is a recommended medication for this condition. It is considered the most effective dopamine agonist that lowers prolactin levels in approximately 90 percent of people who have prolactinomas.