How much more prolactin is a pituitary tumor?

Prolactin is usually 2 - 3 times higher than the upper limit of normal and continuously elevated, or very high prolactin values, it is highly suspected that pituitary tumors. Many physiological factors and other pathological conditions may cause mild elevation of prolactin, such as sleep, stress, exercise, nipple stimulation, pregnancy, lactation and other physiological conditions, prolactin levels will increase physiologically. Drugs such as antidepressants, antipsychotics, and antihypertensive drugs may also cause fluctuations in prolactin levels. If prolactin levels exceed the upper limit of normal by a large amount, such as 2 - 3 times or more, and continue to be high after repeated reexamination, the risk of pituitary tumors is greater. This is because pituitary tumor cells secrete prolactin autonomously, causing it to accumulate in large quantities in the blood. When the prolactin level is very high, such as 10 times or more above the upper limit of normal, it is almost certain that there is a pituitary tumor. However, it is also necessary to combine clinical symptoms, imaging and other comprehensive judgments to confirm the diagnosis. It should be noted that the increase in prolactin only indicates the possibility of pituitary tumor, but it cannot be diagnosed solely on this basis. It is also necessary to further combine clinical symptoms, such as menstrual disorders, lactation, headache, etc.; head magnetic resonance imaging and other examinations to confirm the diagnosis. once suspected of pituitary tumor, should seek medical attention in a timely manner, under the guidance of a doctor for comprehensive evaluation and standardized treatment.