Bleeding gums are not normal, even if they’re common. The body is signalling inflammation, and ignoring it usually means the problem gets worse, not better.
The most frequent reason a patient sits in our chair with bleeding gums is gingivitis, the early stage of gum disease, and the good news is it’s reversible with the right gum disease treatment and home care. Catch it early and the gums settle within a few weeks. Leave it, and what started as a pink sink turns into something altogether more stubborn. That timing matters more than most patients realise.
Why gums bleed in the first place
The lining of healthy gum tissue is tightly attached to the tooth and well-supplied with blood. When plaque (a soft film of bacteria) sits along the gumline for more than a day or two, the tissue underneath reacts. It swells, it loosens slightly, and small blood vessels become fragile. Brush over that area, or run floss between the teeth, and the surface tears just enough to bleed.
That’s gingivitis. It’s not the gums being “sensitive”. It’s the gums being inflamed.
There are other reasons too, and they’re worth knowing because the management is different:
- Hormonal shifts during pregnancy or the contraceptive pill
- Certain medications, particularly blood thinners and some heart drugs
- Vitamin C deficiency (rare in the UK but we do still see it)
- Diabetes that isn’t well controlled
- Smoking, which paradoxically masks bleeding even when disease is present
- Aggressive brushing with a hard-bristled brush, which is a mechanical cause rather than a disease one
Most of the bleeding gums we see are plaque-related. The rest are usually a combination of plaque plus one of the factors above.
The progression nobody warns you about
Gingivitis sits at the top of a slope. If it’s left untreated for months, the inflammation moves below the gumline and starts affecting the bone that holds the teeth in place. That stage is called periodontitis, and it doesn’t reverse. We can stabilise it, slow it dramatically, and keep teeth in the mouth for decades, but the bone that’s been lost stays lost.
This is why “my gums bleed a bit when I brush, it’s nothing” is the wrong instinct. In our experience, by the time bleeding becomes routine, there’s usually already low-grade gingivitis present.
Worth knowing.
What we actually do for bleeding gums
The first appointment is diagnostic. We measure the pockets around each tooth using a small probe, calibrated in millimetres. Healthy pockets are 1 to 3mm. Anything over 4mm suggests the gum has detached from the tooth surface, which is the marker of periodontitis rather than simple gingivitis. We also check for plaque distribution, calculus (hardened plaque, which a toothbrush can’t remove), and any areas where the gum has receded.
If we’re dealing with gingivitis, the treatment is straightforward: a thorough professional clean to remove plaque and calculus, followed by tailored advice on technique. Most patients see a dramatic improvement within two to three weeks. Some don’t, and we’ll come back to that.
If we’re dealing with periodontitis, the treatment escalates. That usually means scaling and root planing under local anaesthetic, sometimes split across two or three appointments depending on severity. We may involve a hygienist for ongoing maintenance, and we’ll review at three-month intervals rather than the standard six.
Gingivitis vs periodontitis at a glance
| Feature | Gingivitis | Periodontitis |
|---|---|---|
| Bleeding | Yes, on brushing or flossing | Yes, often spontaneous |
| Pocket depth | 1 to 3mm | 4mm or more |
| Bone loss | None | Present, visible on x-ray |
| Reversible | Yes, fully | Stabilisable, not reversible |
| Typical treatment | Professional clean plus home care | Scaling, root planing, ongoing maintenance |
| Review interval | Standard 6 months | 3 months, sometimes more frequent |
Home care that actually works
The single biggest factor in resolving gingivitis is what happens at home, twice a day, every day. The clean we do in the chair removes the deposits the toothbrush can’t reach. The toothbrush handles everything else, including the new plaque that forms within hours.
A few things we recommend, in order of importance:
- Brush for two minutes, twice a day, with a soft or medium brush. Electric brushes generally outperform manual ones, but only if the technique is correct.
- Clean between the teeth daily. Floss works for tight contacts; interdental brushes are usually better for gaps wide enough to take them.
- Angle the bristles at 45 degrees toward the gumline. Most plaque sits there, not on the flat tooth surface.
- Replace the brush head every three months, or sooner if it’s splayed.
- Don’t rinse with water immediately after brushing. Spit, but leave the fluoride from the toothpaste in contact with the teeth.
You’ll see articles online suggesting that mouthwash alone can sort out bleeding gums. It can’t. Mouthwash is a useful adjunct, particularly chlorhexidine for short courses (two weeks at most, because of staining), but it doesn’t disrupt plaque the way mechanical cleaning does. The NHS guidance on gum disease is consistent on that point.
When bleeding doesn’t stop
Some patients come back for review three weeks after a clean and the bleeding is largely resolved. Others come back and it isn’t. The reasons vary. Sometimes it’s technique. Sometimes it’s a missed area, a tilted tooth, or a crown with an overhang trapping plaque. More accurately, it’s usually a combination. The point is that persistent bleeding after good home care isn’t something to accept; it’s something to investigate.
Smokers are a separate case. The nicotine constricts blood vessels in the gum tissue, which can mask bleeding even when significant disease is present. We treat smokers with a higher index of suspicion, and we measure rather than rely on visible bleeding alone.
Costs and what to expect
For most patients, an initial assessment plus a professional clean falls under NHS Band 1 (currently £27.90) if the case is straightforward. More complex cases involving scaling and root planing typically sit in Band 2 (currently £76.60). Periodontal treatment that requires multiple appointments may be quoted privately, depending on what’s needed and how much chair time it takes. We’ll always set out the costs in writing before we start. The NHS publishes current dental charges if you’d like to check the bands directly.
Not every case fits neatly into a band. We’ll explain ours.
If you’ve noticed bleeding
Don’t wait for it to settle on its own. It generally won’t. Book a check-up, get the gums assessed, and start the right treatment if any is needed. Most cases we see are easier to fix than the patient expected, particularly when they come in early.
If you’re in or near Westcliff-on-Sea and you’ve noticed your gums bleeding when you brush, our team at Westcliff Dental Practice can take a look and tell you exactly what’s going on. We see this every week, and we can usually settle it within a small number of appointments. Call us on 01702 344 500 to arrange an assessment.
