Gum problem guide
6 min readGum abscess symptoms
A painful gum lump, pus, bad taste or swelling may need urgent dental assessment. Do not try to drain gum swelling yourself.
A gum abscess is a possible infection-related swelling in the gum tissues. Symptoms can include a painful lump, pus, bad taste, redness, gum swelling, tooth pain or facial swelling.
This guide cannot confirm whether a lump is a gum abscess or another problem. A dentist needs to assess painful, persistent or worsening gum swelling.
At a glance
Possible abscess signs
Gum swelling
- A painful gum lump, pus or bad taste needs dental advice.
- Swelling around one tooth can still be linked with a wider dental problem.
- Do not squeeze or drain the area yourself.
Prompt dental care
Assessment needed
- Contact a dentist urgently if swelling is worsening or painful.
- Use NHS 111 if you cannot access a dentist and need urgent advice.
- Seek review if symptoms return after settling.
Spreading infection signs
Emergency care
- Call 999 or go to A&E for swelling affecting breathing, swallowing, speech or the eye area.
- Rapidly spreading facial or neck swelling needs emergency medical help.
- Fever with worsening swelling needs urgent assessment.
Contents
A gum abscess needs professional assessment
A gum abscess may need dental treatment to address the source of infection or drainage under professional care. Home draining can worsen injury and delay proper treatment.
Possible causes or contributing factors
- Infection in a gum pocket or around a tooth.
- A dental abscess tracking through the gum.
- Food trapping, trauma or an irritated gum pocket.
- Wisdom tooth inflammation or a broken restoration.
What you can do now
- Contact a dentist urgently if a painful lump, pus or swelling is present.
- Keep the area clean as comfortably as you can.
- Use urgent care routes if swelling is worsening or spreading.
What not to do
- Do not squeeze, pierce or drain the gum swelling.
- Do not rely on temporary settling as proof the cause has gone.
- Do not delay if facial swelling, fever or mouth-opening difficulty develops.
When to contact a dentist
- A gum lump, pus or bad taste appears.
- Gum swelling is painful, persistent or returning.
- There is toothache, pain on biting or a loose tooth nearby.
When urgent dental care is needed
- Swelling is worsening, spreading or linked with fever.
- Pain affects sleep, eating or daily activities.
- There is difficulty opening the mouth or swallowing comfortably.
When to call 999 or go to A&E
What a dentist or relevant professional may assess or do
- Assess whether the swelling is gum-related, tooth-related or another soft-tissue problem.
- Take X-rays or perform gum measurements where clinically appropriate.
- Clean, drain, treat the tooth or gum, or refer depending on assessment.
Frequently asked questions
Can I pop a gum abscess?
No. Do not try to pop or drain gum swelling. A dentist should assess and treat the cause safely.
Is a gum abscess the same as a dental abscess?
They can overlap. A gum swelling may come from gum tissues or from a tooth infection. Dental assessment is needed.
When should I use A&E?
Use A&E for medical emergency signs such as breathing or swallowing difficulty, rapidly spreading swelling, eye involvement or serious injury.
Need help with gum swelling or pus?
Odenta can help you understand urgent dental care options if symptoms suggest a gum or dental abscess. Odenta does not diagnose or provide treatment; appointment offers depend on availability and clinical suitability, and care is provided by the participating practice.
View urgent dental care optionsOfficial sources
These links open external official guidance pages for further help.
Content reviewed by Dr Majid Saeed · 13 July 2026
References used for this guide are listed above.
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