1, because the ovary secretes too much estrogen, the amount of bleeding increases when it falls off, such as anovulatory functional uterine bleeding.

2, caused by gynecological diseases: uterine fibroids, uterine polyps, etc.

3. Systemic diseases: such as leukemia, aplastic anemia, thrombocytopenia, pernicious anemia, liver disease, hypertension, etc.

4, mental factors, fatigue, postpartum, intrauterine devices, etc.

5, endometrial spiral arterioles are rich, or vascular fragility is enhanced, which can also cause.

Guiding opinions:

Jinchaoan is mainly taken orally to regulate endocrine and menstrual problems, 2 packs a day. After taking it for a period of time, menstruation will return to normal.

In addition, we should keep a good mood and increase comprehensive nutrition. Pay attention to keep warm and avoid cold, cold and cold stimulation.