Taking kynurenine uterine fibroids will not grow, but it should be noted that kynurenine should be taken under the guidance of a doctor. Uterine fibroids are estrogen-dependent benign tumors that gradually increase in size as the level of estrogen in the body rises, and norethindrone is a progestin preparation, which does not generally cause fibroids to increase in size after taking it. Norethindrone is a commonly used contraceptive in clinical practice, so it can play a role in contraception, and at the same time, it has a certain therapeutic effect on endometrial hyperplasia, functional abnormal uterine bleeding and endometriosis. However, it should be noted that it should be taken under the guidance of a doctor, and should not be used blindly. For patients with uterine fibroids, it is recommended that they go to the gynecology department of a regular hospital to improve the ultrasound and other relevant examinations to clarify the size and number of fibroids, and then choose the appropriate way to actively treat them under the guidance of the doctor.