Swollen Gums

In plain English

What swollen gums usually means

Healthy gums are firm, pink or naturally darker depending on skin tone, and fit closely around each tooth with a thin, knife-like edge. Swollen gums look red or darker than usual, puffy or shiny, with rounded edges and blunted points between the teeth, and they often bleed or feel tender. Swelling is the gum's response to irritation, and the commonest irritant by far is plaque, the film of bacteria that builds along the gum line. Where the swelling is tells you something. Puffiness along many teeth usually reflects a general cause such as gum disease or a hormonal change. A single swollen spot between two teeth, or a raised bump beside one tooth, suggests something local, such as trapped food or an infection. Neither pattern can be confirmed without an exam, and early gum disease is far easier to reverse than the advanced form. Mild swelling should be checked by a dentist within 1 to 2 weeks. Severe swelling, pain or signs of infection such as pus, a bad taste or fever should be seen within 48 hours.

Gingivitis (early gum disease)

Plaque left along the gum line inflames the gum edge. Gums look red and puffy and bleed with brushing, usually without pain and across several teeth. At this stage the bone is not affected, and the condition typically settles with professional cleaning and better daily care.

Periodontitis (advanced gum disease)

When inflammation moves below the gum line, the gum detaches from the tooth and bone is gradually lost. Signs can include gums that have pulled back, deep pockets, bad breath, teeth that look longer or feel loose, and swelling that comes and goes.

Food trapped between teeth

A popcorn husk, seed or shred of meat wedged under the gum causes a sore, swollen spot between two teeth, often within a day of the meal. Recurrent packing in the same place may point to a gap, a broken filling or decay that a dentist should look at.

Tooth infection

An infected tooth can drain through the gum, producing a localized swelling or a pimple-like bump near one tooth, sometimes with a bad taste. The tooth may be tender to bite or may have been painful earlier. This pattern needs a dentist within 48 hours.

Hormonal changes

Puberty, pregnancy, the menstrual cycle and menopause can make gums react more strongly to the same amount of plaque. The swelling is usually widespread and bleeds easily. It still calls for a dental check, since the heightened response can mask or speed up gum disease.

Vitamin deficiencies

A diet very low in certain vitamins, classically vitamin C, can leave gums swollen, spongy and prone to bleeding. This is uncommon and tends to come with other signs such as tiredness or easy bruising. It is confirmed by a doctor, not guessed at from the gums.

What a dentist does about it

The dentist or hygienist will usually ask how long the gums have been swollen, whether one area or the whole mouth is involved, and about medications, pregnancy, smoking and general health, since several medicines and conditions affect the gums. The key test is probing: a slim measuring instrument is run around each tooth to record pocket depths and bleeding points. X-rays show whether bone has been lost or whether a tooth is infected. Treatment matches the finding. Gingivitis is typically managed with a professional cleaning and coaching on technique. Periodontitis usually needs deep cleaning under the gum line, follow-up visits and sometimes a referral to a periodontist. Trapped debris is removed and its cause repaired. An infected tooth is treated at its source. If a medical cause is suspected, you may be referred to your doctor.

Until you can be seen

These steps can make swollen gums more comfortable and keep plaque down until your appointment, but they do not show what is causing the swelling. Keep brushing and flossing the area, carefully and thoroughly, even if it bleeds a little; avoiding it lets plaque build. Rinse with salt water twice a day, consider an antibacterial mouthwash used as the label directs, and drink plenty of water. A cold compress on the cheek can ease soreness. If the swelling is severe, painful or has pus, be seen within 48 hours. Trouble breathing or swallowing, swelling spreading into the face toward the eye or neck, fever with facial swelling, or bleeding that will not stop means 911 or the ER.

Note — Timing

When to See a Dentist

Table 1 — Possible causes

Possible Causes of Swollen Gums

1. 01Gingivitis (early gum disease)
2. 02Periodontitis (advanced gum disease)
3. 03Food trapped between teeth
4. 04Tooth infection
5. 05Hormonal changes
6. 06Vitamin deficiencies

Table 2 — Home remedies & self-care

Home Remedies & Self-Care

These may help manage symptoms temporarily while waiting for professional care.

• 01Improve brushing and flossing technique
• 02Salt water rinse twice daily
• 03Antibacterial mouthwash
• 04Apply cold compress
• 05Stay hydrated

Table 3 — Common treatments

Common Treatments for Swollen Gums

These dental procedures are commonly used to treat swollen gums.

Table 4 — Common questions

Frequently Asked Questions About Swollen Gums