Follicular flavinization is a type of anovulatory menstruation, usually because the follicles mature but do not rupture and do not expel eggs, which are directly flavinized in the follicles and may present with abnormal leucorrhea, infertility, chronic pelvic adhesions, etc. 1. Abnormal leucorrhea: the patient’s menstrual cycle is normal and will show various symptoms of follicular maturation, such as increased, thin and drawn leucorrhea during ovulation. After ovulation, because of the increase of progesterone in the patient’s body, the leucorrhea will gradually become sticky, and the menstrual cycle will be normal, except that anovulatory menstruation will occur; 2. Infertility: follicular luteinization directly manifests as infertility, because when it comes to ovulation, there will be no ovulation and usually no pregnancy; 3. The luteal phase may be slightly short or the progesterone level may be low. In summary, patients need to cooperate with the doctor to do ovarian ultrasound examination after ovulation to confirm whether there is follicular luteinization and whether there is ovulation or not, and to cooperate with the doctor for symptomatic treatment in time after diagnosis.