Why did my menstrual flow suddenly decrease?

A sudden decrease in menstrual flow may be related to factors such as fluctuations in hormone levels, endometrial damage, ovarian dysfunction, excessive mental stress, polycystic ovary syndrome and other factors. Decreased menstrual flow usually manifests as shortened menstrual periods or significantly lower menstrual blood volume than before, which can be improved by adjusting lifestyle, drug treatment, etc.

1. Fluctuations in hormone levels

Drastic weight loss and excessive exercise in a short period of time may lead to hypothalamic-pituitary-ovarian axis dysfunction and insufficient estrogen secretion. It manifests as menstrual cycle disorders with reduced menstrual flow, which may be accompanied by symptoms such as fatigue and dizziness. It is recommended to gradually restore a balanced diet and avoid extreme dieting. If necessary, use estradiol valerate tablets, progesterone capsules and other drugs to regulate endocrine under the guidance of a doctor.

2. Endometrial damage

Multiple artificial abortions and uterine cavity operations may cause damage to the basal layer of the endometrium, resulting in thinning of the endometrium and reduced shedding. This condition is often accompanied by increased abdominal pain during menstruation, and intimal thickness can be assessed by ultrasound. Estradiol and dydrogesterone tablets are commonly used clinically to promote endometrial repair, and hysteroscopic separation is required in patients with severe adhesions.

3. Decreased ovarian function

When ovarian reserve decline occurs before the age of 40, increased levels of follicle-stimulating hormone will inhibit endometrial hyperplasia. Typical symptoms include oligomenorrhea and decreasing menstrual flow, which may be accompanied by hot flashes and night sweats. The diagnosis needs to be combined with anti-Müllerian hormone testing. For treatment, Kuntai capsules combined with estradiol valerate tablets can be used for hormone replacement.

4. Excessive mental pressure

Long-term anxiety and tension can inhibit the release of gonadotropin through the neuroendocrine pathway, causing temporary reduction in menstrual flow. To improve, you need to establish a regular schedule, ensure 7-8 hours of sleep every day, and try mindfulness meditation to relieve stress. If it persists for 3 months without relief, it is recommended to seek medical treatment to rule out organic diseases.

5. Polycystic ovary syndrome

Hyperandrogenemia can lead to ovulatory disorders, causing endometrium to be stimulated by a single estrogen for a long time and cause dysplasia. Patients are often accompanied by symptoms such as acne and hirsutism, and polycystic ovarian changes can be seen on ultrasound. Treatment requires the use of ethinyl estradiol and cyproterone tablets as directed by the doctor to regulate the cycle, and use metformin tablets to improve insulin resistance.

Daily attention should be paid to recording the changes in the menstrual cycle, avoiding excessive dieting and strenuous exercise, and ensuring an appropriate daily intake of high-quality protein and iron. If the sudden decrease in menstrual flow lasts for more than 3 months, or is accompanied by severe headache or vision changes, it is necessary to promptly go to the gynecology department for six sex hormones, pelvic ultrasound and other examinations. When perimenopausal women experience this symptom, it is recommended to simultaneously test bone density to assess the risk of osteoporosis.