Women with heavy menstrual flow with blood clots have the following possibilities: 1. Women with heavy menstrual flow with blood clots during their reproductive years, which occurs once in a while, probably because of factors such as overwork or staying up late, causing a lack of qi and blood to increase the menstrual flow. If a woman has a heavy menstrual flow with blood clots, it may be due to uterine fibroids or adenomyosis, so she needs to consult a gynecologist and have an ultrasound examination to confirm the diagnosis. 4, menopausal women, because of the decline of ovarian function, endocrine disorders, if the menstruation is delayed for a long time, excessive thickening of the endometrium, shedding easily appear menstrual blood with blood clots symptoms.