What Causes Elevated Prolactin Levels?

Prolactin—also known as lactogenic hormone—is a polypeptide hormone. In women, its secretion increases markedly during late pregnancy and lactation, thereby promoting mammary gland development and milk production. What causes elevated prolactin levels?

What Causes Elevated Prolactin Levels?

Elevated prolactin levels may result from various causes—including pathological conditions, physiological factors, or medication use. Pathologically, hyperprolactinemia is most commonly caused by prolactin-secreting pituitary adenomas (prolactinomas) or hypothyroidism. Physiologically, it may stem from chronic stress or emotional fluctuations, or be triggered by intense physical exercise. Certain medications—including some antihypertensives and antipsychotics—can also elevate prolactin levels.

Since the underlying cause of elevated prolactin determines the appropriate treatment strategy, management approaches vary accordingly. Pharmacotherapy is typically the first-line treatment for hyperprolactinemia; if drug therapy proves ineffective, surgical intervention or radiotherapy may be considered. These modalities aim to suppress prolactin secretion and thereby alleviate associated symptoms. If hyperprolactinemia is detected, patients should promptly undergo comprehensive evaluation at a hospital to identify the specific etiology and work closely with their physician to implement an individualized treatment plan.

In daily life, maintaining a positive mood and avoiding significant emotional fluctuations is essential. Patients taking medications known to elevate prolactin should consult their physician regarding possible discontinuation or substitution. Adequate rest, avoidance of sleep deprivation, and abstention from spicy or otherwise irritating foods are also recommended. We hope this information proves helpful to you.