Prolactin is a hormone secreted by the pituitary gland. The non-pregnant state of the normal condition is in the normal range, however, prolactin is affected by a variety of behaviors such as mood, environment, circadian rhythms, sexual activity, etc., and there are often some physiological fluctuations, which tend to be relatively small, and excluding the above mentioned factors, the review often falls to normal, and this situation does not need to be dealt with. Another important point is that abnormalities in the function of the thyroid gland need to be ruled out before treatment. If hypothyroidism is present, there may be an increase in prolactin because prolactin and thyrotropin-releasing hormone are structurally homologous. This condition often returns to normal after correction of thyroid function. When blood values are greater than 70, an MRI or CT of the pituitary gland is needed to rule out pituitary tumors, pituitary fossa and other lesions. Generally, microadenomas of the pituitary gland do not require surgery if they do not present with symptoms of compression, and can be controlled with medication. If necessary, see a neurosurgeon to determine the need for surgery.