The appearance of pink blood during the non-menstrual period can have many causes, and only if we know which one is the cause, we can carry out symptomatic treatment. For example, in the case of endometrial hyperplasia, uneven endometrial echogenicity, uterine fibroids and other external factors, it is recommended to take certain anti-inflammatory and hemostatic drugs orally to stop the bleeding. However, if the echogenicity is uneven or polyps are present, hysteroscopic polypectomy and endometrial scraping are needed. Pink colored discharge caused by insufficient function of the corpus luteum can be remedied by oral administration of certain progesterone, such as progesterone, to replenish the deficiency of progesterone and to regulate the menstrual cycle, so as to avoid pink blood flow next time as well. For example, if brown discharge occurs during ovulation, it is caused by physiological changes, and can be observed for another 3-7 days, and will usually end on its own. Similarly, if the discharge is caused by oral medication, such as emergency contraceptive pills, it can be observed for 3-7 days, as it will subside automatically and does not need to be treated.