Why does my menstrual cycle occur once every half month?

Generally, the main causes of having a menstrual period once every half month mainly include hormonal fluctuations during puberty, excessive stress, insufficient luteal function, endometrial polyps, and adenomyosis. If this situation occurs, it is recommended to seek timely diagnosis and treatment at a regular hospital. Detailed explanations are as follows:

1. Hormonal fluctuations during puberty

During puberty, ovarian function is not yet mature, and the secretion of estrogen and progesterone is unstable, leading to frequent shedding of the endometrium and frequent menstruation. Maintain regular作息, avoid staying up late, eat a balanced diet, reduce intake of spicy and stimulating foods, and maintain emotional stability.

2. Excessive stress

Long-term mental tension causes dysfunction of the hypothalamic-pituitary-ovarian axis, leading to hormonal imbalance and affecting the menstrual cycle. Alleviate stress through exercise, listening to music, ensuring sufficient sleep, and communicating with family and friends to relieve emotions.

3. Luteal insufficiency

Insufficient progesterone secretion by the corpus luteum causes premature shedding of the endometrium, resulting in a shortened menstrual cycle. Under a doctor's guidance, medications such as progesterone capsules, dydrogesterone tablets, or medroxyprogesterone acetate tablets can be taken. Regular hormone level check-ups are necessary during treatment.

4. Endometrial polyps

Localized excessive growth of the endometrium forms polyps, affecting the normal shedding of the endometrium and causing frequent menstruation. Under a doctor's guidance, medications such as levonorgestrel tablets, drospirenone ethinylestradiol tablets, or desogestrel ethinylestradiol tablets can be taken. If the polyps are large, a hysteroscopic endometrial polypectomy is required.

5. Adenomyosis

The endometrium invades the uterine muscle layer and bleeds with hormonal changes, stimulating uterine contractions and resulting in a shortened menstrual cycle. Under a doctor's guidance, medications such as triptolide capsules, danazol capsules, or naproxen sodium tablets can be taken. In severe cases, surgical removal of adenomyosis lesions is necessary.

In daily life, maintain regular作息 and avoid staying up late; keep emotionally stable and reduce mental stress; maintain a balanced diet and avoid excessive dieting or overeating; undergo regular gynecological examinations to detect abnormalities promptly; avoid strenuous exercise during menstruation and maintain menstrual hygiene.