What causes high prolactin levels?
In general, elevated prolactin levels may be caused by emotional factors, pregnancy and lactation, medication effects, hypothyroidism, or polycystic ovary syndrome (PCOS). If the above conditions occur, it is recommended to seek timely medical treatment. A detailed analysis is as follows:
1. Emotional Factors
When experiencing emotional stress, anxiety, or intense physical activity, the body releases stress hormones that may interfere with the normal function of the hypothalamic-pituitary-gonadal axis, leading to increased prolactin levels. It is important to learn how to regulate emotions and maintain a healthy mental state.
2. Pregnancy and Lactation
During pregnancy and breastfeeding, prolactin levels naturally rise to support fetal development and milk production. This is a normal physiological change and typically resolves after pregnancy and lactation end.
3. Medication Effects
Certain medications—such as antipsychotics, antidepressants, and antihypertensives—may disrupt the function of the hypothalamic-pituitary-gonadal axis, resulting in elevated prolactin levels. Consult a doctor promptly to adjust or change medications if necessary.
4. Hypothyroidism
Hypothyroidism can result from autoimmune damage, thyroid destruction, or excessive iodine intake. When thyroid hormone secretion is insufficient, a feedback mechanism stimulates the pituitary gland to release thyroid-stimulating hormone (TSH), which may also stimulate prolactin secretion, causing the aforementioned symptoms. It is often accompanied by constipation, dry skin, and memory decline. Treatment may include levothyroxine sodium tablets, thyroid extract tablets, or licorice root tablets, as prescribed by a physician.
5. Polycystic Ovary Syndrome (PCOS)
PCOS is primarily caused by genetic factors, hormonal imbalances, obesity, medication stimulation, or adrenal dysfunction. Hormonal imbalance in patients may indirectly lead to elevated prolactin levels. Symptoms may include irregular menstruation, infertility, hirsutism, and acne. Treatment under medical guidance may involve medications such as dydrogesterone tablets, progesterone capsules, or medroxyprogesterone acetate tablets.
To maintain prolactin levels within the normal range, it is important to manage emotions effectively, avoid prolonged stress or anxiety, maintain a balanced diet, and control body weight.