Hyperprolactinemia Noncancerous tumor (adenoma) of the pituitary gland in your brain is called prolactinoma. It overproduces the hormone prolactin which is called as Hyperprolactinaemia. The major effect of increased prolactin is a decrease in levels of some sex hormones — estrogen in women and testosterone in men. Prolactinoma can impair your vision, cause infertility and produce other effects, although it isn’t life-threatening. Diabetic Doctor Thyroid Doctor Diabetic Specialist Thyroid Specialist Diabetic Doctor in Dombivli Thyroid Doctor in Dombivli