Dysfunctional uterine bleeding refers to the situation where a woman's uterus, ovaries, and brain do not have any actual organic lesions, such as the absence of uterine fibroids or ovarian cysts, yet there are functional changes that lead to bleeding. For example, the most common causes include excessive mental stress during schooling, emotional changes due to the death of a family member, or changes in living environment due to business trips, all of which can trigger uterine bleeding. In some cases, uterine bleeding may be a manifestation of a systemic disease; for instance, some women may experience it due to severe anemia or as a result of prolonged dieting and poor dietary habits leading to malnutrition and weight loss, especially if there is a sudden drop in weight. Additionally, some women may have metabolic diseases that can also cause uterine bleeding. Metabolic diseases include conditions such as elevated blood sugar, abnormal lipid levels, or anomalies in thyroid and adrenal gland functions.