Most cases of dysfunctional uterine bleeding do not heal spontaneously and require pharmacological intervention or surgical treatment. Dysfunctional uterine bleeding is now referred to as abnormal uterine bleeding and is classified as ovulatory or anovulatory. Ovulatory abnormal uterine bleeding has a high rate of self-healing, such as ovulatory bleeding and luteal insufficiency bleeding. The former is vaginal bleeding during ovulation or leukorrhea with blood in small amounts, bright red or dark red, and can heal spontaneously in 2-7 days, while luteal insufficiency bleeding is coffee-colored discharge lasting 1-2 weeks after ovulation or before the next menstrual period and requires medication for luteal support. Anovulatory abnormal uterine bleeding has a low rate of self-healing, often with prolonged bleeding, dripping or heavy bleeding, and if the bleeding does not stop on its own, it is mainly due to follicular dysplasia and inability to ovulate, requiring pharmacological intervention to stop the bleeding. Women who have abnormal non-menstrual uterine bleeding need to seek medical attention as soon as possible to investigate the cause so as not to delay the condition.