What causes a sudden increase in bright red menstrual flow on the first day of menstruation, and what should be done?

The sudden increase in menstrual flow with bright red blood on the first day may be caused by emotional fluctuations, irregular作息 (daily routines), dysfunctional uterine bleeding, uterine fibroids, or endometrial polyps. This can be improved through psychological adjustment, regular作息, medication, or surgical intervention. If the bleeding continues to increase or is accompanied by dizziness and abdominal pain, prompt medical attention is necessary.

1. Emotional fluctuations: Recent mental stress, anxiety, or excessive pressure can disrupt endocrine balance, leading to increased shedding of the endometrium, resulting in a sudden increase in menstrual volume with bright red color. It is recommended to maintain a calm mindset and relieve stress through activities such as listening to music or walking, avoiding intense emotional swings.

2. Irregular作息: Long-term熬夜 (staying up late) and irregular作息 disrupt endocrine rhythms and hormone regulation, causing abnormally heavy menstruation with bright red blood. It is advised to maintain a regular schedule, ensure adequate sleep, avoid staying up late, and eat a balanced diet to support nutritional needs.

3. Dysfunctional uterine bleeding: Endocrine disorders cause abnormal uterine bleeding, characterized by a sudden increase in menstrual flow and bright red blood on the first day of menstruation, possibly accompanied by prolonged bleeding duration. Patients may take medications such as estradiol valerate tablets, dydrogesterone tablets, or Gongxinning capsules under medical guidance to alleviate symptoms.

4. Uterine fibroids: Benign tumors formed by hyperplasia of uterine smooth muscle tissue can enlarge the endometrial surface area, leading to increased menstrual flow with bright red blood, possibly accompanied by a sensation of heaviness in the lower abdomen. Under medical supervision, patients may use tranexamic acid tablets, levonorgestrel-releasing intrauterine systems, or Guizhi Fuling capsules to relieve discomfort.

5. Endometrial polyps: Polyps formed by excessive endometrial proliferation can impair uterine contractions, causing a sudden increase in menstrual flow and bright red blood on the first day, possibly with prolonged periods. Patients may follow medical advice to take dydrogesterone tablets, ethinylestradiol/cyproterone acetate tablets, or Yunnan Baiyao capsules to improve symptoms.

In daily life, it is recommended to maintain external genital hygiene, change sanitary pads frequently, avoid strenuous exercise and fatigue, consume warm, mild, and light foods, eat more iron-rich foods, keep the abdomen warm, and closely monitor menstrual flow and physical condition.