Lump or Mass on Gums: Symptoms & Signs

Medically Reviewed on 9/10/2019

The presence of a lump, or mass, on the gums can be caused by several different conditions. It may be felt as a bump or hard or soft lump anywhere on the gums. An infection, such as a bacterial infection or localized abscess, can appear as a mass on the gums. Oral cancers (gum or mouth cancer) or tumors of the teeth or jaw are rarer causes of a mass on the gums. A cyst of the jaw is also a possible cause of a lump or mass on the gums. Traumatic injuries and canker sores are some of the more common causes of a mass on the gums. Sometimes, the hormonal changes of pregnancy can cause a small lump or bump to form near the gum line, known as a pyogenic granuloma or granuloma gravidarum.

Related Symptoms & Signs

Other causes of lump or mass on gums

  • Abscess
  • Bacterial Infection
  • Congenital Gingival Epulis
  • Excessively Hard Toothbrushing
  • Gingival Granular Cell Tumor
  • Medications
  • Odontogenic Keratocyst
  • Odontoma
  • Poorly Fitting Dentures
  • Poor Oral Hygiene
  • Pyogenic Granuloma
  • Trauma to the Mouth and/or Gums

Next Article


Mouth Problems: TMJ, Canker Sores, Painful Gums and More See Slideshow

Subscribe to MedicineNet's General Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Goldman, Kim E. "Mandibular Cysts and Odontogenic Tumors." Medscape. Sept. 26, 2018. <>.

Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.

Stephen, James M. "Gingivitis." Jan. 18, 2018. <>.