Gums are not necessarily swollen in pulpitis, the details are as follows: 1, inflammation of the pulp leads to inflammation of the periapical area, sometimes penetrating through the gums, for periapical inflammation, not pulpitis. Some periodontal diseases caused by pulpitis, is periodontal, pulp joint lesions, there may be gum abscess or periodontal overflow pus and other symptoms; 2, most of the simple pulpitis, such as caries-induced pulpitis has the highest incidence of pulpitis, this pulpitis is generally not swollen and painful gums; 3, there are also special circumstances, such as pregnant women or hormonal changes in the gums will also have changes, in this case at the same time accompanied by pulpitis will be the gums of the symptoms. In most cases, caries-induced gingival pain will be present in the gums. In most cases, caries-induced pulpitis has no gum symptoms.