The Mannix Ring, or Levonorgestrel IUD system, can effectively inhibit the growth of endometrial polyps and also prevent the recurrence of endometrial polyps. Endometrial polyps need to be surgically removed first, but the recurrence rate after surgery is relatively high. Levonorgestrel IUD system can inhibit the proliferation of the endometrium and improve the hormone level in the uterus, which can prevent the recurrence of endometrial polyps, and it can also play a good role in contraception. Therefore, if the patient has no reproductive needs, it is recommended to use levonorgestrel intrauterine sterilization system after surgery to avoid recurrence of polyps. However, for patients who have already grown polyps without any treatment, the levonorgestrel IUD system is of little use. After being put on the levonorgestrel IUD system, patients need to check the position of the ring regularly. In daily life, attention should be paid to the local cleanliness and hygiene of the vulva and vagina to avoid causing infections in the reproductive organs and leading to inflammation. Patients with endometrial polyps are advised to go to the hospital in time and choose the appropriate treatment under the guidance of the doctor.