Anesthesia for tooth extraction during breastfeeding has a certain effect on breastfeeding, which should be judged according to the nature of the anesthetic. If the extraction of a simple tooth is smooth and rapid, only local infiltration anesthesia can be done and the anesthetic drug can be metabolized and eliminated, such as the commonly used anesthetic drug lidocaine, whose half-life is 3 hours, it is recommended not to breastfeed for 24 hours and to feed after the anesthetic drug is eliminated, which will not affect the baby. However, if the extraction of a tooth is more traumatic, takes longer and causes more damage, and in addition to the application of anesthetic drugs, it is also necessary to apply various drugs such as antibiotics, you should listen to the advice of the treating doctor and determine the time when you can breastfeed according to the half-life of the specific drug. Otherwise, the baby’s immunity will be easily reduced, resulting in symptoms such as bloating, diarrhea and lack of appetite, which will affect the baby’s healthy growth. In general, local anesthetics are used for tooth extraction during breastfeeding, and local anesthetics generally have a fast onset of action and fast metabolism, with a small amount passing through the blood circulation and a very small amount secreted in breast milk, but for the safety of the child, it is best to suspend breastfeeding for a period of time and drain the remaining milk before breastfeeding, and drink more water to promote excretion to reduce the harm as much as possible.