Gum Swelling
Puffy, inflamed, or enlarged gum tissue
Quick Facts
- Type: Oral / dental symptom
- Most common cause: Gum disease (gingivitis)
- Often with: Redness, bleeding, tenderness
- See a dentist: Swelling that persists, an abscess, or fever
Overview
Gum swelling is enlargement or puffiness of the gum tissue around the teeth. Healthy gums are firm, pale pink, and fit snugly around each tooth. When gums become swollen, they may look red, shiny, or bulging, feel tender, and bleed easily, especially when brushing or flossing.
By far the most common cause of swollen gums is gum disease, which begins as gingivitis from plaque buildup along the gumline. The good news is that early gum inflammation is usually reversible with good oral care. Other causes include localized infection, irritation, and certain whole-body conditions. Swelling that is localized and painful, or that comes with fever, may signal an abscess and needs prompt dental attention. Because the gums are a window onto overall oral health, paying attention to swelling early can help prevent more serious problems such as tooth loss down the line.
Common Causes
Swollen gums usually reflect inflammation or infection of the gum tissue. Common causes include:
- Gingivitis: Early gum disease from plaque buildup, the most common cause, with red, puffy, easily bleeding gums.
- Periodontitis: More advanced gum disease that affects the tissues and bone supporting the teeth.
- Poor oral hygiene: Inadequate brushing and flossing that allows plaque and tartar to accumulate.
- Dental abscess: A localized pocket of infection causing painful, focal swelling.
- Food trapped between teeth or irritation from braces or dentures.
- Hormonal changes: Pregnancy, puberty, or menstruation can make gums more sensitive and prone to swelling.
- Nutritional deficiency: Notably a lack of vitamin C.
- Medications that cause gum overgrowth in some people.
Less commonly, persistent gum swelling can be linked to infections or other medical conditions and needs evaluation.
Associated Symptoms
Gum swelling frequently comes with other oral signs that point to the cause. These can include:
- Red or shiny gums that bleed when brushing or flossing
- Tenderness or soreness
- Bad breath or a bad taste in the mouth
- Gums pulling away from the teeth (receding gums)
- A focal, painful bump with pus (suggesting an abscess)
- Loose teeth (suggesting advanced gum disease)
- Fever or facial swelling (suggesting a spreading infection)
Significant facial swelling, fever, difficulty swallowing or breathing, or rapidly worsening pain are warning signs of a serious dental infection that needs urgent care.
Diagnosis & Evaluation
A dentist usually diagnoses the cause of gum swelling from an oral examination and your history. Evaluation may include:
- Examination of the gums and teeth, checking for plaque, tartar, pockets, and signs of infection.
- Measuring gum pockets to assess for periodontitis.
- Dental X-rays to evaluate the bone and look for abscesses.
- A review of medications, oral care habits, and medical conditions that may contribute.
Treatment & Management
Treatment depends on the cause but usually centers on removing plaque and treating any infection:
- Professional dental cleaning to remove plaque and tartar, often resolving gingivitis.
- Deep cleaning (scaling and root planing) for periodontitis.
- Improved oral hygiene, including proper brushing twice daily and daily flossing.
- Treating a dental abscess, which may need drainage, antibiotics, and treatment of the affected tooth.
- Warm salt-water rinses to soothe mild swelling.
- Addressing contributing factors, such as adjusting irritating dental appliances or correcting a vitamin deficiency.
Early gum inflammation often improves within a couple of weeks of good oral care and a cleaning. Persistent or recurrent swelling should be evaluated to prevent progression to more serious gum disease. If a medication is causing gum overgrowth, a dentist and prescribing doctor can discuss whether an alternative is suitable, and extra attention to cleaning helps keep the gums healthy in the meantime.
Self-Care & Prevention
- Brush gently twice a day with fluoride toothpaste and floss daily
- See a dentist regularly for checkups and cleanings
- Rinse with warm salt water to soothe mild swelling
- Avoid tobacco, which worsens gum disease
- Eat a balanced diet with adequate vitamin C
When to See a Doctor
See a dentist if gum swelling lasts more than a week or two, keeps returning, or comes with bleeding, pain, or loose teeth. Seek prompt or emergency care for:
- A painful, focal swelling with pus (a possible abscess)
- Facial swelling or swelling under the jaw
- Fever along with mouth pain or swelling
- Difficulty swallowing, opening the mouth, or breathing, which is an emergency
Frequently Asked Questions
Why are my gums swollen?
The most common cause is gingivitis, early gum disease from plaque buildup along the gumline, which makes gums red, puffy, and prone to bleeding. Other causes include infection, trapped food, hormonal changes, and certain medications. A dental cleaning and good oral care often resolve it.
How do I treat swollen gums at home?
Brush gently twice a day and floss daily to remove plaque, rinse with warm salt water to soothe the tissue, and avoid tobacco. If swelling lasts more than a week or two, returns, or is painful, see a dentist, since a professional cleaning is often needed.
When is gum swelling an emergency?
Seek urgent care for a painful focal swelling with pus (a possible abscess), facial or jaw swelling, fever with mouth pain, or any difficulty swallowing, opening the mouth, or breathing. A spreading dental infection can become serious quickly.
Can pregnancy cause swollen gums?
Yes. Hormonal changes in pregnancy can make gums more sensitive, inflamed, and prone to bleeding, sometimes called pregnancy gingivitis. Good oral hygiene and regular dental cleanings help, and the swelling usually improves after pregnancy.
References
- American Dental Association (ADA). Gum Disease (Gingivitis and Periodontitis).
- Mayo Clinic. Gingivitis — Symptoms and causes.
- MedlinePlus, U.S. National Library of Medicine. Swollen gums.
- Centers for Disease Control and Prevention (CDC). Periodontal Disease.