Whether tooth extraction is possible in preparation for pregnancy should be decided on a case-by-case basis. Some cases can be extracted and some cases are not recommended, as follows: 1. Can be extracted: teeth that are obviously loose and have short roots, which usually produce less trauma after extraction and have no obvious impact on the body, can be extracted during preparation for pregnancy and can recover quickly. The repeated infection of the focal tooth often causes swelling of the cheek and elevated body temperature, which should be extracted as early as possible to avoid adverse effects on the body.2. Extraction is not recommended: For the teeth that are buried and obstructed, such as wisdom teeth, extraction requires cutting the gums, separating the soft tissues and grinding away part of the bone, which may cause greater trauma, persistent swelling and pain, affecting chewing and eating, and sometimes antibiotics are applied to control bacterial infection. It is best not to remove them during the preparation period to avoid the teratogenic effect of drugs.