Dysfunctional uterine bleeding severity varies from person to person, depending on the specific bleeding situation and individual differences. Some people have mild symptoms and can improve by changing their lifestyle, such as losing weight, gaining weight if underweight, avoiding staying up late, and maintaining a regular life schedule. However, in some cases, dysfunctional uterine bleeding can lead to severe anemia, ineffective drug treatments, or endometrial changes, requiring procedures like curettage.