Functional uterine bleeding is not uncommon in clinical practice, and most cases of functional uterine bleeding can be cured. The cause of functional bleeding is primarily due to a disorder of various hormones in women, including estrogen and progesterone. Therefore, when a patient suspects functional uterine bleeding, it is necessary to conduct gynecological color Doppler ultrasound and sex hormone tests amongst others, to assess the levels of various hormones in the female endocrine system. Based on the different abnormal results, different treatment methods are selected. Generally, after hormonal adjustment, the hormone levels in most women will return to the normal range.