What causes elevated prolactin levels in the pituitary gland?

The main causes of elevated pituitary prolactin levels include the following aspects: 1. Medication factors: Long-term use of certain medications, such as anti-gastric ulcer drugs, antihypertensive drugs, antipsychotics, and antidepressants, may lead to increased pituitary prolactin levels. 2. Physiological causes: High-protein diet, strenuous exercise, stress and anxiety, sexual activity, breastfeeding, nipple stimulation through massage, and chronic poor sleep may also cause elevated prolactin levels. 3. Disease-related causes: Elevated prolactin levels may be caused by hypothalamic-pituitary disorders such as pituitary prolactinoma, intracranial tumors, or inflammation, which can affect prolactin secretion. Additionally, conditions such as primary hypothyroidism may also lead to increased prolactin levels. It is recommended to seek timely medical attention to receive professional diagnosis and treatment.