There are many reasons for white hard bumps on the gums, such as periodontal abscess, alveolar bone growth, oral ulcers and so on. 1. Periodontal abscess: apical periodontitis, gingivitis, periodontitis due to inflammation stimulation, can lead to gum area abscess, resulting in the phenomenon of white hard bumps on the gums, accompanied by pain. 2. Alveolar bone hyperplasia: Gums raised white hard pack may belong to the alveolar bone hyperplasia, alveolar bone hyperplasia will lead to localized pressure increase in the oral cavity, the teeth in order to fit to be reasonable, so it will be presented with a bulge. 3. Mouth ulcers: lack of vitamins, mechanical trauma, etc., can cause mouth ulcers, which can lead to the phenomenon of white hard bumps on the gums. There are many reasons why the gums protruding white hard pack, after the symptoms are recommended to go to the hospital in a timely manner to improve the examination, follow the doctor’s instructions under the guidance of the doctor to take standardized treatment, not to private treatment, so as not to lead to adverse consequences.