The other day I saw a few patients with red and swollen gums, women, diagnosed with inflammation of the wisdom teeth, which is a very common thing, a few injections and a few days of medication, it is fine. But the female patient said she was pregnant and I got worried, antimicrobials have an effect on the fetus, but if it doesn’t have to develop this way there is a systemic infection at first, whenever I encounter this situation I think that if every lady who is preparing to get pregnant can go for a dental check-up first, they will avoid this risk. If there are wisdom teeth about to erupt, which is best to pull out before pregnancy, and which you do not pay attention to the rotten roots in your mouth, which is a time bomb ah. Women with bad teeth are more harmful than smoking and drinking alcohol, which can lead to premature birth and low weight of the fetus. It is understood that periodontal disease is one of the most common diseases in the oral cavity. The periodontal disease and tooth loss, the physical and mental health of the person is more dangerous, especially the mother during pregnancy and childbirth because of endocrine changes, gum tissue is soft, where bacteria reproduce to produce toxins to stimulate gum inflammation, resulting in more serious gum redness, bleeding, bad breath and other symptoms, inflammatory exudate swallowed will affect the whole body and the health of the fetus, these inflammatory mediators into the blood will have a toxic effect on the embryo. It has been shown that 18% of preterm low birth weight babies are caused by mothers with periodontal disease, and the risk of preterm low birth weight babies in mothers with periodontal disease is 7.5 times higher than in the control group. It also shows that for pregnant women, having periodontal disease is more dangerous than smoking or drinking alcohol. Mothers-to-be must cultivate a healthy oral environment before preparing for pregnancy: get a professional dental checkup, cure gingivitis and periodontal disease, and fill that cavity deep in the toothbed. This is because hormonal changes after pregnancy, among other things, can aggravate existing dental problems mentioned above.