What should I do if my menstrual flow becomes lighter after consuming too many cold drinks?
Generally, excessive consumption of cold drinks leading to reduced menstrual flow may be caused by factors such as cold-induced blood stasis, hormonal imbalance, endometritis, polycystic ovary syndrome (PCOS), or intrauterine adhesions. It is recommended to seek timely medical evaluation to identify the underlying cause and, under a doctor's guidance, improve symptoms through lifestyle adjustments, medication, or surgical treatment as appropriate. Detailed explanations are as follows:

1. Cold-Induced Blood Stasis: Consuming large amounts of cold drinks can cause uterine blood vessels to constrict, obstructing menstrual blood flow and resulting in scanty, dark-colored periods accompanied by dysmenorrhea (painful menstruation). Immediately stop consuming cold foods and drinks; increase intake of warm water or brown sugar ginger tea to dispel cold. Apply a warm compress to the abdomen during menstruation, and incorporate warming foods into the daily diet, such as lamb, longan, and other nourishing warm-natured foods.
2. Hormonal Imbalance: Prolonged intake of cold drinks may disrupt endocrine function, leading to insufficient estrogen secretion, impaired endometrial proliferation, and thinning of the uterine lining, which results in decreased menstrual flow. Maintain regular sleep patterns and avoid staying up late, keep emotions stable, reduce consumption of raw and cold foods, and increase intake of soy products to supplement plant-based estrogens and promote hormonal balance.
3. Endometritis: Cold drinks may lower the body’s resistance, making it easier for bacteria to invade and inflame the endometrium, causing tissue damage and reduced menstrual flow, often accompanied by abnormal vaginal discharge. Patients should follow medical advice to take anti-inflammatory medications such as cefixime dispersible tablets, metronidazole tablets, or Gynecological Qianjin tablets. During menstruation, maintain warmth and good genital hygiene.
4. Polycystic Ovary Syndrome (PCOS): Hormonal imbalances lead to irregular ovulation, resulting in light menstrual flow and irregular cycles. Cold drinks may exacerbate these symptoms. Patients should follow medical guidance to use hormone-regulating medications such as dydrogesterone tablets, ethinylestradiol cyproterone acetate tablets, or spironolactone tablets. Additionally, manage body weight and engage in regular moderate exercise.
5. Intrauterine Adhesions: Previous uterine procedures may cause endometrial damage and scarring, leading to adhesions. Cold drinks can further impair menstrual blood discharge, causing a sharp decrease in flow or even amenorrhea (absence of menstruation). Treatment typically involves hysteroscopic adhesiolysis to separate the adhesions. Post-surgery, follow medical instructions for medication to support endometrial repair and avoid further uterine trauma.
Maintain a balanced diet, avoiding raw, cold, and spicy foods during menstruation, and increase intake of high-quality protein, fresh fruits, and vegetables. Engage in regular physical activity to strengthen overall health, practice good genital hygiene, avoid unhygienic sexual practices, reduce the risk of uterine infections, and promote reproductive health.