Posterior myometrial fibroid grows a little fast considering that it is related to drugs, fibroid degeneration, etc. Conservative treatment or surgery should be used according to the patient’s symptoms and whether there is a requirement for fertility as prescribed by the doctor. 1. If the patient has recently taken estrogen-containing drugs, it will stimulate the further growth of fibroids. If the patient’s condition permits, stop using estrogen drugs and observe the growth of fibroid. If the diameter of fibroid is larger than 5cm, combined with abdominal pain, heavy menstruation and other symptoms, then active surgical treatment is needed; if the diameter of fibroid is less than 5cm, and there is no special discomfort, ultrasound can be reviewed after 3 months. 2. If the patient is about 50 years old, and the examination finds that the fibroid has increased significantly for a short time, and at the same time, there is irregular vaginal bleeding, abdominal pain and other discomforts, then it is necessary to be vigilant against sarcomatous malignant transformation of fibroid, and then it is necessary to remove the uterus and adnexa by surgery, and it is necessary to cooperate with the postoperative radiotherapy if necessary. For the examination of the uterus after the interstitial fibroids grow a little fast patients, it is recommended to the regular hospital gynecology consultation, clear cause of the disease under the guidance of the doctor active treatment.