Dysfunctional uterine bleeding in women is when the reproductive system has no organic lesions but is caused by internal and external factors that lead to abnormal gonadal axis function, resulting in irregular vaginal bleeding. For example, it is common for women to experience large emotional fluctuations due to family changes or other events, or changes in their work and living environments, excessive fatigue, frequent staying up late, etc., all of which can cause abnormal gonadal axis function. Furthermore, some endocrine disorders in women, such as elevated blood glucose levels and abnormal thyroid or adrenal gland function, can also affect the function of the gonadal axis and cause dysfunctional uterine bleeding.