Pituitary prolactin 800+ in women is relatively serious because it not only leads to irregular menstruation or amenorrhea, but may also cause infertility in women. Prolactin, also called prolactin, is a peptide hormone secreted by the prolactin cells in the anterior lobe of the pituitary gland, and the normal value should be in the range of 102~496 MIU/L. If the prolactin is more than 800 MIU/L in a blood test, this may be hyperprolactinemia, which is relatively serious. If a woman has hyperprolactinemia, she will have scanty or amenorrhea, and will have breast milk overflow. If there is a relatively large pituitary breast tumor, it may cause the patient to have headaches, blurred vision, vomiting, and visual disturbances. High prolactin can lead to low estrogen levels, so that there may be a decrease in secretions and loss of libido. High prolactin can be caused by hypothalamic disorders, pituitary disorders, hypothyroidism, etc. The most common cause is pituitary prolactinoma. The most common cause is pituitary prolactinoma. Taking certain medications, such as antidepressants, antiepileptic drugs, antihypertensive drugs, etc., may lead to elevated prolactin levels. Patients are advised to seek prompt medical attention for symptomatic treatment.