If you have sex 5 days after the removal of the IUD, it is likely to cause inflammation of the lining of the uterus. Because of the removal of the IUD, the lining of the uterus will cause some damage, and it will take about half a month for the damaged lining to be fully repaired. If you have intercourse 5 days after the removal of the IUD, pathogenic bacteria are likely to be brought into the uterine cavity, which will cause infection. Therefore, in this case, it is recommended to take oral anti-inflammatory drugs for 3 days, you can take oral broad-spectrum antibiotics, for example, if the cephalosporin is not allergic to cephalosporins or you can take metronidazole can be, but it must be under the premise of no allergy. In addition, keep the vulva clean. If there is pain in the lower abdomen and a lot of vaginal discharge, be sure to repeat the examination and give treatment according to the results of the doctor’s examination.