IUDs during breastfeeding have no effect on breastfeeding and will not result in a decrease in milk supply. The most common method of contraception used during breastfeeding is the IUD or the IUD. The principle of the IUD is to place a birth control ring in the uterus to interfere with the fertilized egg to achieve the purpose of contraception, it only has an impact on the environment in the uterus, but has no effect on lactation. The breastfeeding period is mainly stimulated by the baby’s continuous sucking secretion, and the maternal rest, nutritional status, mental factors have a certain relationship, and the IUD is not related. If you have had a cesarean section, you can get an IUD as soon as you have had a full six months. It is generally recommended that you get an IUD 3-5 months after your period is clean.