Swollen Gums: When to Worry

Mild swelling — usually fine

Causes:

• Early gingivitis from plaque buildup
• Minor food impaction between teeth
• Recent professional cleaning (mild irritation for 24–48 hours)
• Pregnancy hormones (common; see dental care in pregnancy)
• Start of a new toothbrush or technique

Self-care for 3–5 days: follow the hygiene routine further down this page. If there is no improvement by 5 days, see your dentist.

Moderate swelling — see a dentist

Causes:

• Periodontal abscess (infection in a gum pocket)
• Pericoronitis (infected gum flap over a wisdom tooth)
• Deep decay causing pulp inflammation
• Impacted food particle lodged deep
• Ill-fitting restoration causing chronic irritation

Action: dental appointment within 24–48 hours.

Severe swelling — urgent

Signs:

• Swelling visible on the face (not just inside the mouth)
• Fever above 38°C
• Spreading swelling toward the eye or neck
• Difficulty swallowing or breathing
• Severe pain

Action: go to an emergency department immediately. These can indicate a spreading infection such as cellulitis, or Ludwig's angina under the tongue and jaw, which can be life-threatening.

Specific types

Periodontal abscess

A painful swelling along the gum line, often with pus visible. Causes: blocked gum pocket in periodontitis. Treatment: drainage and cleaning of the pocket, with antibiotics only if the infection is spreading or you have a fever.

Periapical abscess

Swelling from an infection at the root tip of a non-vital tooth. Often tender to biting. Treatment: root canal or extraction + possibly antibiotics. More in why an abscess can't be ignored.

Pericoronitis

Swelling of the gum flap over a partly erupted wisdom tooth. Common in young adults. Treatment: clean under the flap, antibiotics if spreading; wisdom tooth often removed later (should wisdom teeth come out?).

Gingival enlargement (medication-induced)

Certain blood pressure medications, anti-seizure drugs, and immunosuppressants cause overgrowth of gum tissue. Treatment: improved hygiene, possible medication change, occasionally surgical reshaping.

Hormonal gingivitis

Pregnancy and puberty can exaggerate any existing gingival inflammation. Treatment: more frequent professional cleanings, gentle home care.

The hygiene response

For early-stage swelling without infection:

• Brush gently, 2 minutes twice daily
• Floss or interdental brush every day (bleeding for 1–2 weeks is expected as gums heal)
• Salt-water rinse 3–4× daily
• Avoid smoking
• Soft, cool foods, and nothing hard or crunchy for a few days

Most mild swelling resolves within 7–10 days with consistent care. If it keeps coming back, read about the stages of gum disease and how gum disease treatment works.

Common questions

Why are my gums swelling?

Swelling is an inflammation response. The commonest cause is gingivitis from plaque along the gum line, which settles with better cleaning. Localised, painful swelling suggests a periodontal abscess or food trapped between teeth. Swelling around a partly erupted wisdom tooth is pericoronitis. Generalised swelling can be hormonal, as in pregnancy or puberty, a side effect of certain medications, or a sign of a systemic condition. Swelling that spreads, comes with fever, or lasts more than a week needs a dental assessment.

When do you actually need antibiotics for a dental problem?

Only for specific situations: facial swelling with fever, infection that is spreading beyond the tooth, a weakened immune system, and some pre-surgical cases where the dentist or doctor advises cover. Routine gingivitis, mild localised inflammation and toothache alone do not need antibiotics, and they will not fix the cause; the source of infection has to be treated by drainage, a root canal or an extraction. Taking antibiotics without treating the tooth delays proper care and contributes to resistance, so when they are prescribed, take the course exactly as directed.

Practical decision guide

Dental emergencies are time-sensitive because pain, infection, trauma, and swelling can change quickly. The goal is to stabilise the situation safely and get definitive care rather than masking symptoms.

Check this first

• Swelling location, fever, breathing or swallowing difficulty, trauma, bleeding, tooth mobility, and whether the tooth is baby or permanent.
• Whether there is a broken tooth fragment, knocked-out permanent tooth, lost crown, abscess, or spreading infection.
• Current medications, allergies, pregnancy status, and medical conditions before taking painkillers or antibiotics.

When to book sooner

• Permanent tooth knocked out, facial swelling, fever, pus, severe trauma, uncontrolled bleeding, or rapidly worsening pain.
• Pain with difficulty swallowing, breathing, opening the mouth, or swelling near the eye or neck.
• Toothache that wakes you at night or does not respond to normal pain relief.

Topic-specific notes

• For pain or infection, home care can reduce discomfort but cannot remove the cause. Swelling, fever, pus, spreading redness, trauma, or difficulty swallowing should be treated as urgent.

Questions to ask at the appointment

• Is the immediate priority drainage, root canal, extraction, splinting, re-cementation, or monitoring?
• What symptoms mean I should go to an emergency department instead of waiting?
• What temporary steps are safe until the appointment?

Dubai patient note

In Dubai, call the clinic first when possible. For spreading swelling, breathing difficulty, uncontrolled bleeding, or major trauma, use hospital emergency care rather than waiting for a routine dental slot.

References

• American Academy of Periodontology
• NHS — Gum infection guidance