What causes menstrual irregularities after pituitary tumor surgery?

Feb 08, 2023 Source: Cainiu Health
Disease description:

A few years ago, I was diagnosed with a pituitary adenoma and subsequently underwent surgery. Recently, my menstrual cycle has been irregular—sometimes occurring three times a month. Why is my menstruation still irregular after pituitary tumor surgery?

Doctor's answer (1)
Dr. Zhao Xiaodong
After pituitary tumor surgery, if menstrual abnormalities occur, appropriate evaluations should be promptly completed. Pituitary adenomas are endocrine tumors; in particular, prolactin-secreting pituitary adenomas can significantly disrupt the secretion of estrogen and progesterone. The cyclic interplay between these two hormones is essential for normal menstruation, so timely assessment is crucial in such cases. Menstrual irregularities may stem from partial damage to pituitary tissue or moderate stimulation of prolactin, leading to impaired secretion of estrogen and progesterone. Therefore, patients are advised to undergo further hematological examinations to clarify the specific changes and progression of the condition. Additionally, patients should maintain a light diet and avoid spicy or irritating foods.