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.
Goldman, Kim E. "Mandibular Cysts and Odontogenic Tumors." Medscape. Sept. 26, 2018. <http://emedicine.medscape.com/article/852734-overview>.
Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.
Stephen, James M. "Gingivitis." Medscape.com. Jan. 18, 2018. <http://emedicine.medscape.com/article/763801-overview>.
Pictures, Images, Illustrations & Quizzes
Dental (Oral) Health Quiz: Test Your Dental Hygiene IQ
Take the Dental Health Quiz to test your IQ of oral hygiene, cavities, and common tongue and gum diseases. This quiz covers...
Dental Images of Cavities, Dry Sockets, Gingivitis
Learn about dental problems such as cavities, gum disease, bad breath, and oral cancer. Explore procedures such as root canals,...
Top Problems in Your Mouth
Learn about some of the most common problems in your mouth such as sores, oral cancer, TMJ, painful gums, bad breath and more....
Causes of Lump or Mass on Gums
An abscessed tooth is an infection within a tooth that has spread to the root. Symptoms of an abscessed tooth may include pain,...
Canker sores are a common complaint, and are small ulcers on the inside of the mouth. Canker sores aren't contagious (as opposed...
Cysts are sac-like structures that may be filled with gas, liquid, or solid materials. Cysts may produce symptoms and signs...
Gardner's Syndrome (Familial Adenomatous Polyposis)
Gardners' syndrome, or familial adenomatous polyposis (FAP), is an inherited condition in which cancer of the colon and rectum...
Gum disease is caused by plaque and may result in tooth loss without proper treatment. Symptoms and signs of gum disease...
Gum problems may be caused by improper brushing and flossing, gum disease, canker sores, treatments and hormonal changes....
The term oral cancer includes cancer of the mouth (oral cavity) and the back of the mouth (oropharynx). Red and white patches...
Pregnancy (Week By Week, Trimesters)
Signs and symptoms of pregnancy vary by stage (trimester). The earliest pregnancy symptom is typically a missed period, but...
Other Causes of Lump or Mass on Gums
Examples of Medications for Lump or Mass on Gums
Subscribe to MedicineNet's General Health Newsletter