It is usually recommended to swim only one week after tooth extraction, and it is not recommended to do strenuous sports in the early stage after tooth extraction, because strenuous sports will have accelerated blood circulation and even elevated blood pressure, which will easily cause blood to seep from the extraction sockets. Especially after the extraction of wisdom teeth or molar teeth that are relatively difficult to extract, the extraction incision is large, and if other sports such as swimming are performed too early, it is easy to cause the extraction sockets to bleed more than once. When swimming, there will be repeated exhalation and inhalation, or even choking, and if you swim too early, the blood clot in the extraction socket may be washed away by the water. Since the blood clot in the extraction socket is the basis for tissue regeneration and healing, once the blood clot is dislodged, it may cause delayed healing of the extraction socket, and even cause infection and dry socket in the extraction socket. It is usually recommended to swim only after a week of extraction and after the soft tissues of the extraction socket have completely healed.