Normally menstruation is not delayed after IUD removal. Removal of the IUD is an operation to remove the intrauterine device from the uterus after a woman has lost her fertility due to preparation for pregnancy or has entered menopause. The operation is normally performed within 3 to 7 days after the end of menstruation, and this operation does not affect the menstrual cycle. However, due to the difference in physical condition of each individual, the environment in the uterus will change after the removal of the IUD, and some women may have abnormal menstrual cycles for a short period of time, which is a physiological phenomenon and will gradually recover on its own after a period of time. In addition, the removal of the IUD may also cause lower back pain and slight pain in the lower abdomen, which are normal phenomena. It is normal to feel pain in the lower abdomen, but you should take care of yourself and rest for a period of time to recover. Generally, there will be a small amount of vaginal bleeding after IUD removal, which is also caused by the stimulation of the uterine lining during the removal operation. If the discomfort after IUD removal is more serious, you need to consult a doctor.