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Berkhamsted Dental Practice

06 / 10 / 2026

Why do my gums bleed when I brush? Causes, risks and fixes

Bleeding gums are one of the most common dental concerns patients mention, and one of the most commonly ignored. Many people assume that a little blood when brushing is normal, or that brushing harder will sort the problem out. Neither is true. Bleeding gums are a signal worth paying attention to, and in most cases they are entirely reversible.

The most common cause: gum inflammation

The most frequent reason gums bleed during brushing is gingivitis, the earliest stage of gum disease. Gingivitis occurs when plaque, a soft bacterial film, builds up along the gum line and causes the gum tissue to become inflamed. Inflamed gums are swollen with increased blood flow, which is why they bleed easily when disturbed by a toothbrush.

The good news is that gingivitis is almost entirely reversible with good oral hygiene and a professional cleaning. The bad news is that most people do not seek treatment until the condition has progressed.

Other causes of bleeding gums

Incorrect brushing technique. Brushing too hard with a medium- or firm-bristled brush can physically damage gum tissue and cause bleeding that is unrelated to infection. A soft-bristled brush used with gentle, circular motions is far more effective and far less damaging.

New or disrupted oral hygiene routine. If you have just started flossing after a long gap, or switched brushing technique, some initial bleeding is normal. It should settle within two weeks as the gum tissue adapts and strengthens.

Medications. Certain medications, including blood thinners and some antidepressants, can make gum tissue more prone to bleeding. Always let your dentist know what medications you are taking.

Hormonal changes. Pregnancy, puberty, and hormonal fluctuations can make gum tissue more sensitive and reactive. Pregnancy gingivitis is a recognised condition that requires monitoring.

When bleeding gums are more serious

If gums bleed regularly, bleed spontaneously without brushing, or are accompanied by receding gum tissue, persistent bad breath, or loose teeth, these are signs that gum disease may have progressed beyond gingivitis to periodontitis. Periodontitis involves damage to the bone and structures that support the teeth and requires professional periodontal treatment.

What to do

Do not stop brushing. Avoiding the area will allow plaque to accumulate and make the problem worse. Instead, switch to a soft-bristled brush, ensure you are brushing for a full two minutes twice a day, and introduce daily interdental cleaning.

Book a dental check-up so your dentist can assess whether the cause is gingivitis, advanced gum disease, or another factor. A professional scale and polish at a hygiene appointment will remove hardened deposits that brushing alone cannot reach.

Bleeding gums are your body telling you something. At Berkhamsted Dental, we take gum health seriously as the foundation of everything else. Book an appointment today.

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Monday
08:00 AM - 06:00 PM
Tuesday
08:00 AM - 06:00 PM
Wednesday
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Thursday
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Friday
08:00 AM - 01:00 PM
Saturday
09:00 AM - 01:00 PM

Opening Times

Monday
08:00 AM - 06:00 PM
Tuesday
08:00 AM - 06:00 PM
Wednesday
08:00 AM - 06:00 PM
Thursday
08:00 AM - 06:00 PM
Friday
08:00 AM - 01:00 PM
Saturday
09:00 AM - 01:00 PM
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  • Site last updated: 3 November 2026
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Berkhamsted Dental Practice

5.0 164 reviews

  • Great service and lovely staff! Emily on reception was fantastic :)

  • Greeted warmly by everyone. Treated respectfully by my dentist with step by step explanations regarding my treatment. Consequently, I was able to feel more relaxed having been reassured that all was going well. Thank you for an excellent outcome.

  • Very happy with my Invisalign process with Kish. He kept me well informed throughout and always took time to answer all my many queries. The price was reasonable compared to others in the area and it has all been completed within the original time advised.… Read more

    Very happy with my Invisalign process with Kish. He kept me well informed throughout and always took time to answer all my many queries. The price was reasonable compared to others in the area and it has all been completed within the original time advised. I'm yet to have my composite bonding done but hope to have a transformed smile in the end. Would thoroughly recommend BDP if you're considering Invisalign.

  • Berkhamsted dental practice have been amazing and so helpful. Other dentist didn't want to help me with my treatment as needed alot of work but they have taken one look and gone above and beyond to help me. The staff are friendly helpful and quick to respond… Read more

    Berkhamsted dental practice have been amazing and so helpful. Other dentist didn't want to help me with my treatment as needed alot of work but they have taken one look and gone above and beyond to help me. The staff are friendly helpful and quick to respond to any questions I may of had after treatment. I still need a lot of treatment but very grateful for the help i have received so for and looking forward to the final outcome down the line

  • I have just completed the main part of my Invisalign journey followed by composite bonding and could not be happier. Having been told by my previous dentist that it wasn’t worth doing ( due to my age and small change I would achieve) I had a consultation with… Read more

    I have just completed the main part of my Invisalign journey followed by composite bonding and could not be happier. Having been told by my previous dentist that it wasn’t worth doing ( due to my age and small change I would achieve) I had a consultation with Dr Kish to start a programme of Invisalign to straighten out my front teeth which had moved over time and now had a very slight overlap. Once complete, I saw Dr Ventsi for bonding to the edges of 6 teeth, which, as a heavy tooth grinder, were chipped and uneven. Both Drs were knowledgeable and lovely to deal with. I could not be happier with the result! A little change has made a huge difference !

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