Why Do My Gums Bleed When I Brush My Teeth?
Bleeding gums are common, but they should not be ignored. Learn what can cause bleeding gums, what you can do at home, and when to see a dentist.
Seeing a little blood in the sink after brushing can be surprising.
You might think you brushed too hard, or perhaps you assume bleeding gums are simply something that happens from time to time.
But healthy gums generally shouldn't bleed regularly when you brush or clean between your teeth.
One of the most common reasons for bleeding gums is a buildup of plaque around the teeth. Plaque is a sticky layer of bacteria that forms naturally in your mouth. If it isn't removed regularly, it can irritate your gums and cause them to become red, swollen, and more likely to bleed. (NIDCR)
Is it normal for gums to bleed?
Occasional bleeding doesn't necessarily mean that you have a serious dental problem.
However, if your gums bleed regularly when you brush, floss, or eat harder foods, it's worth paying attention.
Bleeding gums can be an early sign of gingivitis, a mild form of gum disease. The good news is that gingivitis can often be reversed with good daily oral care. (NIDCR)
If gum problems are allowed to continue, they can sometimes progress to a more serious form of gum disease that can affect the tissues and bone supporting your teeth.
Plaque is often the main reason
Plaque is a thin, sticky film that forms on your teeth throughout the day.
It contains bacteria and can build up around the gumline, especially in places that are easy to miss when brushing.
If plaque stays there, it can irritate your gums.
Your gums may become:
- Red
- Swollen
- Tender
- More likely to bleed
If plaque hardens into tartar, regular brushing and flossing won't remove it. A dentist or dental hygienist needs to remove it during a professional cleaning. (NIDCR)
What if your gums bleed when you start flossing?
This is a common question.
Some people notice bleeding when they begin cleaning between their teeth after not doing it regularly.
That doesn't necessarily mean flossing is harming your gums.
Cleaning between your teeth helps remove plaque from areas where a toothbrush can't reach. Floss, interdental brushes, water flossers, and other tools can all be used depending on what works best for you. (NIDCR)
The important thing is to clean gently rather than forcing floss down between your teeth.
If you're unsure about the best technique, your dentist or dental hygienist can show you how to do it.
Could you be brushing too hard?
Yes.
Brushing harder doesn't necessarily mean you're cleaning your teeth better.
Your toothbrush should clean your teeth without aggressively scrubbing your gums.
The NIDCR recommends brushing gently with small, circular movements and using a fluoride toothpaste. (NIDCR)
If your toothbrush bristles become worn or flattened quickly, you may be pressing too hard.
A softer touch is usually better than trying to scrub away plaque with force.
How often should you brush?
For most people, brushing twice a day with fluoride toothpaste is an important part of keeping teeth and gums healthy.
The NHS recommends brushing for about two minutes each time, including once before bed. (NHS)
It's also important to clean between your teeth regularly because a toothbrush can't reach all of those spaces.
You can use traditional floss or another method that works for you, such as interdental brushes or a water flosser.
What else can affect your gums?
Plaque isn't the only factor that can affect gum health.
Smoking, for example, is a major risk factor for gum disease. Certain health conditions and medications can also affect your gums or increase your risk of developing gum problems. (NIDCR)
If you notice changes in your gums and you're not sure why they're happening, it's worth mentioning them to your dentist.
What can you do if your gums are bleeding?
A good daily routine is a simple place to start.
Brush twice a day
Use a fluoride toothpaste and brush gently, making sure you clean all sides of your teeth and along the gumline. (NIDCR)
Clean between your teeth
Floss or use another type of interdental cleaner regularly to remove plaque from places your toothbrush can't reach.
Don't scrub harder
More pressure isn't the answer. Gentle brushing is enough.
Keep your dental appointments
Regular dental visits allow your dentist to look for problems that you may not notice yourself and provide professional cleaning when needed.
Avoid smoking
Smoking increases the risk of gum disease and can also make treatment less successful. (NIDCR)
When should you see a dentist?
If your gums continue to bleed regularly, it's a good idea to have them checked.
You should also pay attention to other symptoms, including:
- Red or swollen gums
- Tender gums
- Persistent bad breath
- Gums pulling away from your teeth
- Loose or sensitive teeth
- Pain when chewing
These can be signs of gum disease that needs professional attention. (NHS)
You don't have to wait until the problem becomes painful. Gum disease can develop gradually, and getting it checked early can make it easier to manage.
The bottom line
Bleeding gums aren't something you should simply accept as normal.
In many cases, bleeding is related to plaque buildup and irritated gums. Improving your daily brushing and cleaning between your teeth can help, especially when the problem is caught early. (NIDCR)
But if your gums keep bleeding or you notice swelling, pain, bad breath, loose teeth, or other changes, make an appointment with your dentist.
Your gums can tell you quite a bit about what's happening in your mouth. Paying attention to those early signs is one of the simplest ways to take better care of your oral health.
Sources
National Institute of Dental and Craniofacial Research (NIDCR) – Oral Hygiene
NIDCR – Periodontal (Gum) Disease