By Dr. Jonathan Sanderson, DDS
Bleeding gums when brushing are most commonly caused by plaque buildup that triggers gum inflammation, known as gingivitis. Other causes include brushing too aggressively, improper flossing techniques, or certain medications. If your gums bleed regularly, even without pain, a dental examination can help determine whether early gum disease is developing.
When patients in Colorado Springs, CO tell me their gums bleed when they brush, they often have one of two explanations in mind: they must be brushing too hard, or something must be seriously wrong.
My first step is to move beyond those assumptions. Inflammation is a common explanation, but the question that matters most is whether the problem is limited to the gums or involves the structures supporting the teeth.
That is why I recommend having bleeding gums evaluated rather than judging the problem by how much it hurts. As the American Dental Association explains, gum disease is often painless.
In my conversations with patients at Audubon Dental, I frequently find myself correcting the assumption that bleeding automatically means they used too much pressure.
Brushing too hard can cause bleeding, so technique matters. But changing your toothbrush does not establish why your gums were bleeding in the first place. Gum inflammation, called gingivitis, is another important possibility.
Plaque is a sticky film containing bacteria. When it accumulates around the gumline, it can trigger inflammation and bleeding. The CDC distinguishes this reversible inflammation from periodontitis, which damages the tissues supporting the teeth.
My goal is not simply to help you make the bleeding disappear. It is to understand what the bleeding is telling us.
When I examine gums, I look for signs of inflammation, including swelling and changes in tissue firmness. But appearance alone does not answer the deeper question: has the tooth lost support?
With gingivitis, the gums are inflamed without the supporting attachment and bone loss associated with periodontitis. With appropriate professional care and daily plaque removal, that inflammation can resolve.
Periodontitis is a different situation. It involves damage to the attachment and bone that help hold teeth in place. Untreated gingivitis can progress to periodontitis, but progression is not inevitable for every person. These distinctions are central to the CDC’s explanation of gum disease.
This is the difference I want patients to understand: improving inflamed gums and managing lost tooth support are not the same task. Both deserve attention, but they may require different treatment.
One analogy I use is to compare tartar to shards of glass. It helps patients picture the difference between a smooth tooth surface and a rough deposit sitting next to gum tissue.
But the analogy has a limit. Tartar does not simply cut the gums or mechanically push them away. The important process is the inflammatory response to plaque and calculus, the technical name for tartar.
Plaque can harden into tartar, which brushing and flossing cannot remove. A dental professional needs to remove those deposits. That is why better home care and professional cleaning have different jobs: daily cleaning controls plaque, while professional instruments remove hardened buildup.
I use the rough-surface comparison to make that distinction tangible—not to suggest that gum disease is simply an injury from something sharp.
This added layer of analysis allows your doctor to:
Early detection is what makes proactive care possible.
I sometimes compare periodontal disease with high blood pressure in one specific respect: a person can have a problem that needs attention without feeling it. The comparison is about the absence of symptoms, not a claim that the conditions are otherwise the same.
When there is bone loss, I walk patients through their X-rays. I point out the visible bone level and explain how it differs from the support we would expect around a healthy tooth. Photographs can also help make the conversation concrete.
A periodontal assessment also includes measuring the spaces around teeth and checking for bone loss. An X-ray is part of the picture, not the entire diagnosis.
My aim is to make the findings understandable, not alarming. If you feel fine, being shown what needs attention is more useful than simply being told you have gum disease.
For a patient with gingivitis, I explain how professional cleaning and more effective daily care work together. We go over flossing and brushing rather than assuming that being told to “brush better” is enough.
A practical starting routine follows ADA home-care guidance:
I expect bleeding caused by gingivitis to improve as inflammation settles, but I would not promise that every patient’s bleeding will stop on a particular day. If it continues after treatment, contact the office for reassessment.
If there is periodontitis, a routine cleaning may not be enough. Treatment can include deeper cleaning below the gumline and, in some cases, surgery.
I explain that controlling the disease matters even when lost support cannot be fully restored. Certain regenerative procedures can rebuild some lost bone and tissue, but that is not the same as promising complete recovery. Treatment and ongoing care aim to preserve teeth; they cannot guarantee that a tooth will never be lost.
My recommendation is to make an appointment at Audubon Dental in Colorado Springs, CO when you notice bleeding gums, especially if it keeps happening. You do not need to wait for pain.
I particularly want patients to mention discomfort, swelling in one area or several areas, or a tooth that feels loose. Sometimes localized irritation has a straightforward explanation, such as food trapped between teeth. An examination helps distinguish that from a deeper problem.
Tell your dentist about medications and changes in your health, too. Pregnancy and blood-thinning medicines can contribute to gum bleeding; not every case has the same explanation.
Heavy bleeding that will not stop, or swelling that affects breathing or swallowing, calls for emergency care, not a routine appointment.
If your gums bleed when you brush, you can contact Audubon Dental at 719-597-6300 to arrange an evaluation. I want you to leave understanding what is causing the bleeding, whether your teeth have lost support, and what care makes sense for your situation.
Growing up in Texas, Dr. Sanderson attended Sam Houston State University on a baseball scholarship, earning a bachelor’s degree in biology and preparing for dental school. He attended the University of Texas at San Antonio Dental School, graduating in 1998.