Inclusion criteria
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1. In line with western medicine abnormal uterine bleeding diagnostic criteria,be classified asAUB-E
2. According to the traditional Chinese medicine diagnostic standard of prolonged menstrual period, syndrome differentiation of traditional Chinese medicine is blood stasis syndrome.
3. Those aged between 18 and 45 years old (including 18 and 45 years old) with regular menstrual cycle and prolonged menstrual period for 3 consecutive months;
4. The menstrual period is 7 days > and <= 14 days;
5. Subject will sign informed consent voluntarily.
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Exclusion criteria:
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1. Allergy, mental illness, drug or alcohol abuse or drug addiction
2. The examination showed organic lesions, such as uterine fibroids (diameter >= 3cm), endometrial polyps (diameter > 1cm), pituitary tumors, adenomyosis, submucosal fibroids, scar defects after cesarean section,
3. Abnormal uterine bleeding AUB-O
4. Prolonged menstrual period caused by ectopic pregnancy, pregnancy complications, intrauterine contraceptive device, trauma, endometritis, pelvic inflammatory disease and other hemorrhagic diseases;
5. Suspicious or confirmed thrombocytopenia and other coagulation mechanism disorders, hyperthyroidism or hypothyroidism and other hemorrhagic diseases that cause abnormal uterine bleeding;
6. Combined with liver and kidney function impairment, ALT, AST > normal value upper limit, or Cr > normal value upper limit;Combined with hematopoietic system and other serious primary diseases
7. Those who have been treated with other traditional Chinese medicine or participated in other clinical trials in the past month;
8. Received hormone and other western medicine treatment or hysteroscopic surgery, abortion and other uterine operators within the last 3 months;
9. Planned pregnancy and lactation;
10. According to the judgment of the researcher, other lesions or conditions that may reduce the possibility of enrollment or complicate the enrollment, such as frequent changes in working environment and unstable living environment, are likely to cause loss of follow-up.
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