Abnormal uterine bleeding during adolescence is a common disorder in adolescent girls and needs to be treated correctly by both parents and the children themselves. It is important not to ignore the possible organic pathology, but also to avoid excessive visits to the clinic and treatment. In the clinic, we often encounter patients’ mothers who are overly anxious about their children’s menstrual disorders and are constantly seeking medical consultation and treatment, making it difficult for the patients to relax. It is common that some girls may not have menstruation in the first few years after menarche, because the neuroendocrine regulation of girls in this period is not yet perfect, so various menstrual irregularities may occur. First of all, one should have a correct understanding of the pubertal development process and avoid excessive mental tension, exertion and malnutrition that can induce such phenomena to occur. Therefore, adolescent girls must arrange their study and life well, pay attention to the combination of work and rest, exercise and strengthen their body, ensure sufficient intake of nutrition (protein, vitamins, iron), and avoid cold diet. During bleeding, the uterine cavity is connected to the inside and outside, and bacteria will rapidly multiply and cause disease because of the good growth environment. Therefore, when bleeding, we should pay attention to the cleanliness of the vulva, change underwear and menstrual pads and other menstrual products regularly; we should never not wash the vulva because of bleeding, on the contrary, we must wash it daily during menstruation to remove blood stains. You can use some vulva cleanser or warm water to wash your vulva, but you should avoid basin yu. If there is a lot of vaginal bleeding and it lasts for a long time, especially when there is weakness, dizziness and other abnormalities, you should consult a doctor in time to correct anemia and adjust your menstrual cycle under the guidance of a doctor to avoid further aggravation of anemia. Maintaining a normal weight is a very important prerequisite for normal menstruation. Both overweight and too thin may lead to menstrual disorders.