There are many reasons for a sudden increase in menstrual flow. If a woman of childbearing age has recently had sex without proper contraception, there is a possibility of increased bleeding due to biochemical pregnancy or abnormal bleeding due to other abnormal pregnancies. If there are polyps, fibroids or endometrial lesions in the endometrium, or even adenomyosis, it may also lead to a sudden increase in menstrual flow, which can be confirmed by ultrasound. In the case of perimenopausal women, between the ages of 45-55, there is a possibility of abnormal ovulation or menstrual cycle disorders, causing abnormal uterine function bleeding, usually without organic lesions, and most of them can be diagnosed by blood tests of the six endocrine tests.