A swollen gum covers a wide range — from a bit of puffiness that resolves with better brushing, to the visible sign of an infection that needs dealing with promptly. The useful thing is knowing which one you are looking at.
First: is this the kind that cannot wait?
Before anything else, because it is the part that matters.
Go to a hospital emergency department immediately if any of these are present:
- Swelling spreading beyond the gum into your face or neck, particularly if it is growing over hours
- Any difficulty swallowing, or any difficulty breathing
- An eye swelling shut on the same side
- Fever alongside facial swelling
- You cannot open your mouth properly
Those are signs that infection has spread past the tooth into the tissue spaces of the face and neck. That is treated as a medical emergency and it needs a hospital, not a dental appointment. In Malaysia, the emergency number is 999.
Everything below assumes none of those apply.
What are the three common causes?
| What it looks like | Likely cause | What it usually needs |
|---|---|---|
| Puffy, red, tender along the gumline of several teeth; bleeds when brushing | Gingivitis — inflammation from plaque and hardened deposit | A professional clean, then better daily cleaning between teeth |
| One firm tender lump beside a single tooth; that tooth hurts to bite on; bad taste | An abscess — infection at the root tip | Drainage, then root canal treatment or extraction of that tooth |
| Sore flap of gum over a partly-through back tooth; jaw stiff | Inflammation around an erupting wisdom tooth | Cleaning under the flap; sometimes removal of the tooth |
| Sudden swelling after a filling or crown feels “high” | Bite trauma on one tooth | Adjusting the bite — often quick |
| Generalised swelling that started with a new medication | Some drugs cause gum overgrowth | Worth raising with both your doctor and dentist |
How do I tell inflammation from an abscess?
The distinction that matters most, and it is usually possible to make.
Gingivitis is broad. It affects the gumline across several teeth, bleeds when you brush, and is tender rather than painful. It responds to having the deposit removed and to genuinely cleaning between the teeth every day. It is reversible.
An abscess is local. It is one spot, often a distinct raised lump on the gum beside a particular tooth. That tooth typically hurts to bite on, may feel slightly raised, and there is often a bad taste if it has started draining. It does not resolve with brushing, because the source is inside the tooth or in a deep pocket beside it.
If you can point at it with one fingertip, think abscess. If you have to wave a hand along the gumline, think inflammation.
It burst and the pain went. Why is that not good news?
This one deserves its own section, because the relief is genuine and completely misleading.
An abscess hurts because of pressure — pus accumulating in a space that will not expand. When it finds a way out through the gum, the pressure drops and the pain drops with it, often dramatically and within minutes.
Nothing about the infection has changed. The source at the root is exactly as it was. What has happened is that it has made itself a drainage channel. The swelling typically refills once that channel closes, and the cycle repeats — usually with more bone loss around the root each time.
A drained abscess is the best possible moment to get treated, because you are not in agony and there is time to do it properly. It is also the moment most people cancel the appointment.
What about the gum around a wisdom tooth?
Common enough to treat separately. A wisdom tooth that has come partly through often keeps a flap of gum over part of its surface. That flap traps food debris and bacteria in a space no toothbrush reaches, and it becomes inflamed, swollen and sore — sometimes with jaw stiffness.
It tends to settle and then recur, because the flap is still there. Whether the answer is cleaning under it, or removing the tooth, depends on whether the tooth has room to come through into a useful position. That needs an X-ray to judge, not a look.
More on that in wisdom tooth removal in Kota Kinabalu.
What helps until I am seen?
- Warm salt water rinses, several times a day — about half a teaspoon in a cup of warm water
- A painkiller you already tolerate, at the packet dose
- Cold on the outside of the cheek for swelling — twenty minutes on, twenty off
- Keep brushing, gently, including the sore area; stopping makes inflammation worse
- Do not put heat on a swollen face — where there is swelling, warmth encourages spread
- Do not squeeze or pierce a swelling. It pushes infection into tissue rather than out of it
And do not start antibiotics you have at home from a previous course. They reduce the swelling for a while without touching the cause, the swelling returns when the course ends, and you have made the eventual treatment slightly harder to judge.
What happens at the appointment
At FTS Chin Dental in Likas we work out which of the causes above it is, because they need different things:
- We look at whether the swelling is localised to one tooth or spread along the gumline
- We test the tooth — response to temperature, tenderness to biting, whether it feels raised
- We usually take an X-ray, because infection at a root tip and bone loss beside a deep pocket are both invisible from above the gum
- We explain what we found and what the options are, including what happens if it is left
- You are told the price before treatment starts
We are open Monday to Wednesday and Friday to Saturday 9am–5pm, Thursday 9am–1pm, closed Sunday. Message us on WhatsApp describing the swelling — where it is, how long, whether it is growing — and we will tell you how quickly you need to be seen.
For the wider picture of what different kinds of tooth pain mean, see sakit gigi — what tooth pain means and what to do.