A prolactinoma might not cause any signs or symptoms. However, too much prolactin in your blood (hyperprolactinemia) can cause symptoms. So can pressure on surrounding tissues from a large tumor. Because too much prolactin can disrupt the reproductive system (hypogonadism), some of the signs and symptoms of a prolactinoma are specific to females or males. In females, prolactinoma can cause:  Irregular menstrual periods or no menstrual periods Milky discharge from the breasts when not pregnant or breastfeeding Painful intercourse due to vaginal dryness Acne and excessive body and facial hair growth  In males, prolactinoma can cause:  Erectile dysfunction Decreased body and facial hair Smaller muscles Enlarged breasts  In both females and males, prolactinoma can cause:  Infertility Weak and brittle bones that break easily (osteoporosis) Loss of interest in sexual activity  Pressure from tumor growth can cause:  Vision problems Headache Reduction of other hormones produced by the pituitary gland  Females who are premenopausal tend to notice signs and symptoms early, when tumors are smaller in size. This is probably because of missed or irregular menstrual periods. Females who are postmenopausal are more likely to notice signs and symptoms later, when tumors are larger and more likely to cause headache or vision problems. Males are also more likely to notice signs and symptoms later.
prolactinoma cause signs symptoms  however  prolactin blood (hyperprolactinemia) can cause symptoms  can pressure surrounding tissues large tumor  prolactin can disrupt reproductive system (hypogonadism)  signs symptoms prolactinoma specific females males  females  prolactinoma can cause:  irregular menstrual periods menstrual periods milky discharge breasts pregnant breastfeeding painful intercourse due vaginal dryness acne excessive body facial hair growth  males  prolactinoma can cause:  erectile dysfunction decreased body facial hair smaller muscles enlarged breasts  females males  prolactinoma can cause:  infertility weak brittle bones break easily (osteoporosis) loss interest sexual activity  pressure tumor growth can cause:  vision problems headache reduction hormones produced pituitary gland  females who premenopausal tend notice signs symptoms early  tumors smaller size  missed irregular menstrual periods  females who postmenopausal likely notice signs symptoms later  tumors larger likely cause headache vision problems  males likely notice signs symptoms later
prolactinoma