The early signs of gum disease
The first stage is common, almost painless, and completely reversible. The second stage is none of those things. Knowing the difference is worth a great deal.
If your gums bleed when you brush or floss, that is the sign. It is not normal, it is not because you brushed too hard, and it is the single most useful early warning your mouth gives you.
Healthy gums do not bleed when cleaned, in the same way healthy skin doesn't bleed when washed. Bleeding means inflammation, and inflammation in the gums has a cause that will not go away by itself.
Two stages, and only one is reversible
"Gum disease" covers two conditions that are often discussed as one. The distinction is the most important thing on this page.
| Gingivitis | Periodontitis | |
|---|---|---|
| What's affected | The gum tissue only | Gum, plus the bone holding the tooth |
| Reversible? | Yes — fully, with treatment and good cleaning | No — lost bone does not regrow. Progress can be halted, not undone |
| Typical signs | Bleeding, redness, puffiness, bad breath | The above, plus receding gums, pockets, loosening, movement |
| Pain | Usually none | Often none until late |
| Treatment | Professional cleaning plus improved daily cleaning | Deep cleaning below the gumline; sometimes surgery |
Gingivitis is extremely common and entirely fixable. Left alone, it can progress to periodontitis, where the inflammation reaches the bone and the body begins resorbing the bone anchoring the tooth. That loss is permanent.
The cruelty of the sequence is that neither stage reliably hurts. There is no alarm. People routinely arrive at a dentist with advanced periodontitis having felt fine, because a loose tooth is often the first symptom impossible to ignore — and by then a lot of bone is gone.
What to look for tonight
Take a bright light, a mirror, and two minutes.
- Bleeding when you brush or floss. Any bleeding, anywhere, even occasionally. Pink in the sink counts.
- Colour. Healthy gums are usually pale pink and firm. Inflamed gums look redder, sometimes shiny or purplish. Compare different areas of your own mouth — one region being noticeably redder than the rest is informative.
- Shape. The gum between two teeth should come to a neat point. When it looks rounded, swollen or puffy, that's inflammation.
- Texture. Firm and slightly stippled, like orange peel, is good. Soft, spongy or smooth-and-glossy is not.
- Persistent bad breath or a bad taste. Deep gum pockets are oxygen-free environments where odour-producing bacteria thrive — see what causes bad breath.
- Teeth looking longer. Gum recession exposes root surface, which is slightly yellower and more sensitive than enamel. More on what causes receding gums.
- Sensitivity to cold at the gumline. Exposed root has no enamel over it.
- Any looseness or movement, or a change in how your teeth meet. This is a late sign. Do not wait on it.
The two-week test
If you find bleeding, clean thoroughly and specifically for two weeks — twice-daily brushing plus flossing or interdental brushes every day, paying attention to the bleeding areas rather than avoiding them.
Mild gingivitis often improves markedly in that window. Gums that keep bleeding after two weeks of genuinely good cleaning need a dentist. That is a clear result, not a failure — it means there is hardened deposit below the gumline that no toothbrush can reach.
Why it happens
The starting point is plaque left undisturbed along the gumline. Within a couple of days the bacterial community there shifts toward species that provoke an immune response, and the immune response is what you see as redness and bleeding.
Left in place, plaque mineralises into tartar (calculus) — hard, firmly bonded to the tooth, and impossible to remove by brushing. Tartar is rough and porous, so it holds more plaque, closer to the gum, and the process accelerates. This is the entire reason professional cleaning exists as a category.
Several factors raise the risk independent of cleaning: smoking (substantially, and it masks bleeding by constricting blood vessels), diabetes, pregnancy and hormonal changes, certain medications, genetics, and a dry mouth.
What actually reverses gingivitis
- Clean between your teeth every day. This is the intervention that matters most, because gum disease starts where a brush doesn't reach. Floss or interdental brushes, whichever you'll do consistently.
- Brush twice a day, at the gumline, gently. Angle the bristles about 45 degrees toward the gum, small movements. Pressure is not the point — placement is. Hard scrubbing causes recession without cleaning better.
- Keep going through the bleeding. Areas that bleed are the areas that need cleaning most. Avoiding them is the common mistake. Bleeding typically reduces within days.
- Get the tartar removed. If it has hardened, only a dentist or hygienist can remove it, and no amount of home care substitutes.
- Stop smoking. It is the largest modifiable risk factor after plaque itself.
Where supplements fit — and where they don't
Oral probiotics have been studied as an adjunct for gum inflammation, mostly alongside professional cleaning rather than instead of it. Some results are encouraging.
They do not remove plaque or tartar, which is the actual cause. If your gums are bleeding, the useful order is: see a dentist first, get the deposits off, fix the daily cleaning — and only then consider whether an addition is worth it. If you are weighing one up, our ProDentim review works through a specific product.
See a dentist promptly if
Your gums bleed persistently despite good cleaning; any tooth feels loose or has moved; your bite feels different; you have gum pain, swelling or an abscess; or you have pus, a persistent bad taste, or gums pulling away from your teeth. Bone loss cannot be recovered, so the value of the appointment falls with every month it's delayed.