Patient answers

Why do my gums bleed when I brush?

Short answer

Bleeding gums are usually a sign of inflammation caused by plaque building up along the gumline. In its early stage this is gingivitis and is reversible with thorough cleaning and a professional clean. Bleeding that persists for more than a couple of weeks should be assessed.

3 min read

What the bleeding means

Healthy gums do not bleed when brushed. When plaque sits along the gumline, the body responds with inflammation, and inflamed tissue bleeds easily. That is the signal.

Left alone, gingivitis can progress to periodontitis, where the supporting bone is affected. That stage is manageable but not fully reversible, which is why early bleeding is worth acting on.

The instinct to brush less is the wrong one

Many people brush the bleeding area more gently or avoid it, which lets more plaque accumulate and makes the inflammation worse. Clean the area thoroughly but not aggressively — a soft brush, angled at the gumline, twice a day, plus daily cleaning between the teeth.

In many cases the bleeding reduces noticeably within a week or two of consistent cleaning.

Other contributing factors

Smoking, pregnancy, some medications, diabetes and vitamin deficiencies all affect gum health. A new blood thinner can also make gums bleed more readily. Mention your medical history and medications at your appointment.

When to book

If bleeding continues after two weeks of good cleaning, if your gums are receding, if teeth feel loose, or if you notice persistent bad breath or a bad taste, have it assessed. A professional clean removes the hardened deposits that brushing cannot.

Common questions

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