Wisdom tooth extraction has been smelly may be the emergence of dry socket, may also be gingivitis and other factors. 1. Dry socket, if the patient often stimulate the socket area after tooth extraction, it may lead to dry socket, once the alveolar fossa is infected with dry socket, the bacterial growth may produce a bad smell. 2. Gingivitis, some patients have gingivitis due to pathogen stimulation of the gum tissue, may be congested and edematous, increased secretion, so there may be foul-smelling symptoms, and wisdom teeth removal may not have a direct relationship. If the odor symptoms often appear, it is recommended to consult a doctor in time to determine whether there is a disease.