Bleeding gums: causes, treatment and when to see a dentist
Originally published
If your gums bleed when you brush, clean between your teeth or eat, arrange a dental appointment. Bleeding is common, but it deserves attention even if your gums do not hurt.
Why do gums bleed?
A common cause is plaque collecting around the gumline. This can lead to gingivitis: inflamed gums that may look red or swollen and bleed easily. Brushing too hard or injuring the gum can also cause bleeding, so the dentist will look at both your gums and how you clean them.
Gingivitis can improve with appropriate care. In some people, gum disease progresses to periodontitis, which damages the tissues and bone supporting the teeth. Progression and tooth loss are not inevitable. King’s College Hospital explains the signs of gum disease and why treatment matters.
What should you tell your dentist?
Explain when the bleeding started, whether it happens without brushing, and whether you have pain, swelling or loose teeth. Tell the dentist about your health, pregnancy and any medicines you take. These details help them assess the problem; bleeding gums alone do not diagnose diabetes, a vitamin deficiency or another general health condition.
Do not start supplements as a substitute for an assessment. If you take prescribed medicine, do not stop it yourself because your gums bleed; discuss the problem with your dentist and the clinician who prescribes it.
Cleaning and treatment
Keep brushing gently with fluoride toothpaste twice a day and clean between your teeth daily. Avoid vigorous scrubbing. Ask your dentist or hygienist to show you a suitable technique and how to choose interdental brushes or floss. Spit out toothpaste after brushing without rinsing straight away.
Treatment depends on the examination. It may include professional cleaning and help with daily care. More advanced gum disease may need treatment beneath the gumline or specialist care. A mouthwash or herbal rinse does not replace removing plaque and getting the gums assessed. The NHS gum disease guide describes treatment and everyday care.
When is it urgent?
Ask for an urgent dental appointment if your gums are very sore and swollen, teeth are becoming loose, or you have ulcers, red patches or a lump in your mouth or on your lip. Do not assume every change is caused by gingivitis. If you cannot get an appointment, contact NHS 111.
For recurring bleeding without those urgent symptoms, book a dental assessment. Early advice can help you understand the cause and make your daily cleaning more effective.