High prolactin is not necessarily a pituitary tumor, but may also be physiologically elevated, or caused by other diseases such as hypothyroidism, it is recommended to improve the relevant examination. 1. Physiological elevation: such as strenuous activities, trauma and other stressful situations, which may lead to high prolactin; lactation or pregnancy can also occur in women with high prolactin. 2. Pathological elevation: such as long-term use of gastric drugs, antihypertensive drugs, neuropsychotropic drugs and other drugs may cause elevated prolactin. Or when suffering from hypothyroidism, low thyroid function, through the negative feedback regulation mechanism, promote the pituitary gland to secrete a large amount of prolactin and lead to elevated prolactin. High prolactin is recommended to go to the endocrinology department as soon as possible to get a clear diagnosis.