There are many reasons for non-menstrual black-brown blood, which may be related to diseases, mental factors, medications, pregnancy, etc. Diseases such as uterine fibroids, endometrial polyps, pelvic inflammatory disease can cause abnormal bleeding during non-menstrual period, mental stress, metabolic disorders, estrogen and progesterone medications or ectopic pregnancy, pre-menstrual abortion and so on may also appear in the above situation.
1. Diseases: such as uterine fibroids, endometrial polyps, vaginitis, cervicitis, cervical lesions, pelvic inflammatory disease, endometritis, endometriosis, etc. can cause abnormal non-menstrual bleeding, and ovarian cysts and other diseases may cause non-menstrual flow of dark brown blood.
2. Psychological factors: If there are no other uncomfortable symptoms, the influence of internal and external factors, mental tension, metabolic disorders, sudden changes in the environment and climate, dietary disorders, over-exercise, alcoholism and so on can cause endocrine disorders, which can lead to non-menstrual flow of dark brown blood.
3. Drugs: Estrogen, progesterone such as estradiol valerate, progesterone and other drugs may cause non-menstrual flow of dark brown blood.
4. Pregnancy: ectopic pregnancy, preeclampsia, miscarriage, etc. can also cause non-menstrual dark brown blood.
Non-menstrual flow of dark brown blood may also have other factors, it is recommended to go to the regular hospital in time to check, if necessary, standardized treatment.