Healthy gums are firm, fit snugly around each tooth, and have a pale pink or salmon-pink color. They don’t bleed when you brush or floss. Unhealthy gums, by contrast, tend to be red, puffy, and prone to bleeding, sometimes even from gentle brushing. Knowing exactly what to look for can help you catch gum problems early, when they’re easiest to reverse.
What Healthy Gums Look Like
Healthy gum tissue has a consistent color, a slightly textured surface, and a firm feel when you press on it. Here are the specific features to check for:
- Color: Salmon pink is the classic baseline, but natural gum color varies with skin tone. People with darker skin often have brown or dark brown gums due to higher melanin production. If your gums have always been that shade and the color is even across the gumline, that’s normal for you.
- Texture: Healthy attached gum tissue has a subtle dimpled surface, sometimes described as an “orange peel” look. This fine stippling is considered a sign of healthy, well-adapted tissue. Not everyone has obvious stippling, but its presence is a good indicator.
- Firmness: The tissue should feel firm, not spongy. Healthy gums are tightly bound to the bone and tooth root underneath, so they don’t move or pull away easily.
- Shape: Gums follow a scalloped pattern around each tooth, with small pointed triangles of tissue (called papillae) filling the spaces between teeth. There should be no gaps where the gum has pulled back from the tooth.
- No bleeding: A healthy gum pocket, the tiny space between the gum and the tooth, measures 1 to 3 millimeters deep and does not bleed when brushed, flossed, or probed during a dental exam.
Early Warning Signs: Gingivitis
Gingivitis is the earliest stage of gum disease, and it’s reversible with good care. The visual shift can be subtle at first, which is why many people miss it. The gums change from their usual pink to a brighter red or, in darker-pigmented gums, a noticeably deeper shade than usual. They look puffy or swollen, especially along the gumline and in the triangles between teeth.
The most reliable early sign is bleeding. If you see pink in the sink after brushing, or blood on your floss, that’s inflammation talking. Healthy gums don’t bleed from normal cleaning. You may also notice that the stippled texture disappears in inflamed areas, leaving the surface smooth and shiny. The gums may feel tender to the touch.
At this stage, pocket depths are still close to normal. The damage hasn’t reached the bone yet, which is why gingivitis can be fully reversed with consistent brushing, flossing, and professional cleaning.
Advanced Disease: Periodontitis
When gingivitis goes untreated, it can progress to periodontitis, where the supporting bone and tissue start to break down. The visual changes become more dramatic and harder to ignore.
Gum recession is one of the clearest signs. The gumline creeps downward (or upward on lower teeth), exposing parts of the tooth root that are normally covered. Teeth may look longer than they used to. You might notice dark triangular gaps opening between teeth where the papillae have shrunk away.
Pocket depths increase beyond the healthy 1 to 3 millimeter range. Once pockets reach 4 millimeters or deeper, they become difficult to clean with a toothbrush or floss, which accelerates the cycle of infection and tissue loss. In advanced cases, pockets can reach 7 millimeters or more.
Other signs at this stage include persistent bad breath that doesn’t improve with brushing, pus along the gumline, teeth that feel loose or shift position, and changes in how your bite fits together. If the bone and soft tissue supporting the teeth are destroyed enough, teeth may eventually need to be removed.
How Smoking Changes the Picture
Smoking complicates gum assessment because it masks some of the classic warning signs. Nicotine constricts blood vessels in the gum tissue, which can reduce the redness and bleeding that would normally alert you to inflammation. Smokers’ gums may look pale or fibrotic rather than red and puffy, even when significant disease is present underneath.
Tobacco also causes its own visible changes. Smoker’s melanosis, a darkening of the gum tissue along the front teeth, affects roughly 5 to 22% of cigarette and pipe smokers and is more common in women. It’s caused by irritation from the smoke rather than natural melanin, so it looks different from genetic pigmentation: it tends to concentrate along the front gumline rather than appearing evenly across all the tissue.
Smokeless tobacco creates a different pattern. The area of the mouth where it’s held develops a whitish, wrinkled appearance. Over time, it can cause localized gum recession in that spot, exposing the tooth root to decay.
How to Check Your Own Gums
You don’t need special tools for a basic visual check. Stand in front of a well-lit mirror and gently pull your lip away from your teeth to get a clear view of the gumline. Look at the color, shape, and surface texture. Run through a simple checklist:
- Color: Is the tissue your usual shade, or are there areas that look redder, darker, or more inflamed than the surrounding tissue?
- Shape: Do the gums hug each tooth tightly, or are they pulling away? Are the pointed triangles between teeth intact, or are gaps forming?
- Texture: Does the tissue look firm and slightly dimpled, or smooth, shiny, and swollen?
- Bleeding: Pay attention when you brush and floss over the next few days. Any consistent bleeding is worth noting.
Keep in mind that gum changes can be uneven. Disease often shows up in isolated spots, particularly around back teeth or areas that are harder to clean, while the rest of the mouth looks fine. Check the entire gumline, not just the front teeth you see when you smile.
What Pocket Depth Measurements Mean
During a dental exam, your dentist or hygienist uses a small measuring instrument to check the depth of the space between each tooth and the surrounding gum. This is one of the most objective ways to assess gum health, and understanding the numbers helps you make sense of what you’re told at your appointment.
Readings of 1 to 3 millimeters with no bleeding are normal. A reading of 4 millimeters is a gray zone: it could indicate early disease, or it could be a “pseudopocket” caused by swollen tissue without underlying bone loss. Some medications can cause gum overgrowth that produces deeper readings even in the absence of periodontitis. Consistent readings of 5 millimeters or more signal that bone support is being lost and active treatment is needed.
Your dentist tracks these numbers over time. A pocket that was 3 millimeters last year and is 5 millimeters now tells a very different story than a pocket that has been stable at 4 millimeters for years. Ask for your numbers at each visit so you can follow the trend yourself.