Why do I need a prolactin levels test?You may need this test if you have symptoms of a prolactinoma. Symptoms may include:Production of breast milk if you are not pregnant or breastfeedingNipple dischargeHeadachesChanges in visionOther symptoms are different depending on whether you are a man or woman. If you are a woman, symptoms also depend on whether you have gone through menopause. Menopause is the time in a woman's life when her menstrual periods have stopped and she can't become pregnant anymore. It usually starts when a woman is around 50 years old.Symptoms of excess prolactin in women who have not gone through menopause include:Irregular periodsPeriods that have stopped completely before the age of 40. This is known as premature menopause.InfertilityBreast tendernessWomen who have gone through menopause may not have symptoms until the condition worsens. Excess prolactin after menopause often causes hypothyroidism. In this condition, the body does not make enough thyroid hormone. Symptoms of hypothyroidism include:FatigueWeight gainMuscle painConstipationTrouble tolerating cold temperaturesSymptoms of excess prolactin in men include:Nipple dischargeBreast enlargementLow sex driveErectile dysfunctionDecrease in body hair
