Healthy gums are firm, pale pink, and fit snugly around your teeth. If yours look puffy, feel tender, or bleed when you brush, you likely have some degree of gingivitis. It’s the earliest and most common form of gum disease, and the good news is that it’s completely reversible when caught early. Here’s how to tell what’s going on in your mouth and what to do about it.
The Signs You Can See and Feel
The most reliable at-home clue is bleeding. Gums that bleed easily when you brush or floss are inflamed, full stop. You might notice pink on your toothbrush bristles, blood when you spit, or a metallic taste in your mouth. Even if the bleeding is minor and painless, it’s not normal.
Color is the next thing to check. Stand in front of a well-lit mirror and pull your lip back to look at the gum tissue along your upper and lower teeth. Healthy gums are a consistent pale pink (or coral, depending on your natural skin tone). Gingivitis turns them bright red, dark red, or noticeably darker than usual. The tissue may also look shiny or swollen rather than having its normal stippled, orange-peel texture.
Other signs include tenderness when you press on your gums, persistent bad breath that doesn’t go away after brushing, and gums that seem to have pulled slightly away from the teeth, creating a visible gap or pocket. Some people notice that their gums feel soft or spongy instead of firm.
A Simple At-Home Plaque Check
If you want a more objective look at what’s happening, you can buy disclosing tablets at most pharmacies. These contain a harmless red dye that stains plaque so you can see exactly where it’s building up. Chew one tablet thoroughly, swish the mixture of saliva and dye around your teeth and gums for about 30 seconds, then rinse with water. Any areas that stay stained red are covered in plaque, which is the bacterial film that causes gingivitis in the first place. A small dental mirror helps you check the backs of your teeth and along the gum line.
Use the tablets at night, since they can temporarily tint your lips, cheeks, and tongue pink or red. The color fades by morning.
Why Smokers Can Miss the Warning Signs
Smoking restricts blood flow to your gums. That reduced circulation means your gums may not bleed even when they’re actively inflamed, masking one of the most obvious symptoms. If you smoke or vape, don’t take the absence of bleeding as a clean bill of health. Pay closer attention to color changes, puffiness, and bad breath instead. And if you quit smoking, don’t be alarmed if your gums suddenly start bleeding more. That’s your circulation returning to normal, and the bleeding will reveal inflammation that was already there.
Conditions That Raise Your Risk
Certain situations make gingivitis more likely, even if your brushing routine is decent.
Pregnancy is a major one. Somewhere between 60% and 75% of pregnancies in the U.S. involve some degree of gingivitis. Rising levels of estrogen and progesterone increase blood flow to the gums and change how your body reacts to plaque, making the tissue more prone to swelling, soreness, and bleeding. This can start as early as the second month of pregnancy and typically peaks in the third trimester.
Diabetes is another significant risk factor. Persistently elevated blood sugar impairs your body’s ability to fight infection and fuels chronic inflammation in the mouth. Higher glucose levels in saliva also give harmful bacteria more fuel to thrive, which accelerates plaque buildup. The relationship runs both directions: gum inflammation can worsen blood sugar control, and uncontrolled diabetes can make gum infections harder to manage. Keeping blood sugar well controlled is one of the most effective things you can do for your gum health if you have diabetes.
Other factors that increase susceptibility include certain medications that cause dry mouth (saliva helps wash bacteria away), hormonal changes during puberty or menopause, and a diet low in vitamin C.
What a Dentist Looks For
A dental exam can confirm what you’re seeing at home and tell you how far things have progressed. Your dentist or hygienist uses a thin probe to gently measure the depth of the pocket between each tooth and the surrounding gum. Healthy pockets measure 3 millimeters or less. They’ll also check for bleeding on probing, which is one of the most reliable clinical indicators of active inflammation.
The key distinction your dentist is making is whether you have gingivitis or periodontitis, its more advanced and irreversible cousin. Gingivitis affects only the soft gum tissue. There’s no bone loss and no permanent attachment loss between the tooth and its supporting structures. Periodontitis, on the other hand, means the inflammation has spread deeper, destroying bone and the fibers that hold teeth in place. Once that damage happens, it can’t fully grow back. X-rays help your dentist check whether bone loss has started.
This distinction matters because gingivitis is entirely reversible. Periodontitis is not. That’s why catching things at the gingivitis stage makes such a difference.
How Quickly Gingivitis Resolves
Mild gingivitis can start improving in as little as one to two weeks once you establish consistent brushing and flossing. You’ll notice less bleeding first, then the color and puffiness begin to normalize. Moderate cases, especially where hardened tartar has built up below the gum line, may take several weeks to a few months and typically require a professional cleaning to remove deposits that a toothbrush can’t reach.
The basics that actually work: brush twice a day with a soft-bristled brush (angling the bristles toward the gum line), floss once daily, and use an antiseptic or anti-plaque mouthwash if your dentist recommends one. Electric toothbrushes tend to be more effective at removing plaque along the gum line than manual ones. If you don’t see improvement within two weeks of consistent daily care, a professional cleaning is the next step.
If tartar has already formed, no amount of home care will remove it. Tartar is hardened plaque that bonds to the tooth surface and can only be scraped away with dental instruments. A professional cleaning removes both the tartar and the bacterial colonies living beneath it, giving your gums a fresh start.
Signs It May Be More Than Gingivitis
A few red flags suggest the problem has progressed beyond simple gingivitis. Gums that are pulling away from your teeth noticeably, teeth that feel loose or have shifted position, pain when chewing, or pus between your teeth and gums all point to possible periodontitis. Deep, persistent bad breath that doesn’t respond to improved hygiene is another warning sign. If any of these apply, a dental evaluation sooner rather than later gives you the best chance of limiting permanent damage.