As a young couple preparing to have a child, in addition to the usual pre-pregnancy checkups, don’t forget to get your teeth checked at the hospital and don’t go into pregnancy with dental disease. Why? Because if you have dental disease in your mouth and do not treat it in time and you get pregnant with a little baby, then it will be an October pregnancy until the baby is born. During this time, if the tooth becomes painful, you must go to the hospital to receive treatment. At this time, the severe pain, the tension during the treatment, the drugs used (such as anesthetics), the taking of X-rays, etc., may have certain effects on the fetus and even lead to miscarriage or premature birth. What should I do if I am already pregnant and I find out that there is still dental disease in my mouth that has not been treated? It is better to choose the time when it is relatively safe to go for the necessary treatment at 4` to 6 months of pregnancy. In addition, if the parents have serious dental disease, untreated dental caries, red and bleeding gums, a large number of bacteria in the mouth, such as Streptococcus pyogenes, such as Lactobacillus, Actinobacillus, etc., will spread these bacteria to the child through the intimate contact between the parents and the infant, etc., and the risk of dental disease in the child will be greatly increased in the future. Therefore, we advocate not to go into pregnancy with dental disease, which is important not only for the pregnant woman herself, but also for the oral health of the infant and child.