What is prolactin? Prolactin, also known as prolactin, is a hormone secreted by the pituitary gland. In the late pregnancy or lactation period, the exuberant secretion of prolactin is mainly used to promote breast development. At this stage of high prolactin, it is medically called prolactinemia.

What are the symptoms of high prolactin? When prolactin is high, women may have pituitary dysfunction, cerebral hemorrhage, cerebrospinal fluid leakage, visual impairment, nervous system problems and other diseases. There will also be irregular menstruation, primary amenorrhea, secondary amenorrhea, luteal insufficiency, ovulation insufficiency and luteal insufficiency.

When is postpartum prolactin high? Generally speaking, three or four in the morning is the highest.

Prolactin secretion is pulsed, and there will be many changes in one day. Within one hour after falling asleep, the secretion of prolactin will increase rapidly, and then it will remain at a high level during sleep until it begins to decrease after waking up. At three or four o'clock in the morning, the secretion of serum prolactin is twice that of noon. Drug factors and disease factors can also lead to an increase in prolactin secretion.