What Do Unhealthy Gums Look Like? Signs to Watch For

Last Updated: October 30, 2026

Unhealthy gums usually look red or purplish rather than pink, feel puffy or tender, and bleed when you brush or floss. They may also pull back from the teeth so the teeth look longer than before, or show pus along the gumline. Healthy gum tissue is firm, fits snugly around each tooth, and does not bleed during normal brushing. Any of those changes is worth a dental exam, because the earliest stage of gum disease can be reversed and the later stages cannot.

What Healthy Gums Look Like

Healthy gums hug each tooth tightly with no gaps or flaps. They feel firm rather than spongy, and they stay quiet while you clean your teeth. The National Institute on Aging advises seeing a dentist if brushing or flossing makes your gums bleed or hurt, which tells you that bleeding is not something to accept as normal.

Gum color varies from person to person. Pale pink is common, and naturally darker or brown-toned gums are also normal as long as the color is even and the tissue is firm. What matters more than the shade is a change: gums that used to be one color and are now red, shiny, or blotchy along the edges.

There is also a measurement you cannot see. NIDCR notes that in a healthy mouth, the pockets between the gum and the tooth measure about 1 to 3 millimeters when checked with a small probe. Deeper pockets are a sign of gum disease.

Signs of Unhealthy Gums

Red, Swollen, or Tender Gums

Inflammation is the first visible change. The gumline looks puffy instead of thin and scalloped, the color deepens, and the tissue may be sore when you touch it. The CDC lists red, swollen, or tender gums as a leading sign of gum disease.

Bleeding When You Brush or Floss

Pink in the sink is the symptom people notice first and dismiss most often. Bleeding happens because inflamed tissue is fragile. The ADA includes gums that bleed easily among its warning signs, and it is worth reading more about why gums bleed and how bleeding is treated if this is your main concern.

Gums Pulling Away From the Teeth

When gums recede, more of the tooth is exposed, and the teeth look longer. The American Academy of Periodontology describes this receding or pulling away as a warning sign of gum disease. You may also notice new dark triangles between teeth, or sensitivity when something cold hits the newly exposed root.

Pus, Sores, or Persistent Bad Breath

Pus between the gums and teeth, sores inside the mouth, and bad breath or a bad taste that does not clear with brushing all appear on the AAP's list of symptoms. Pus means active infection and needs an appointment, not a stronger mouthwash.

Loose Teeth or a Bite That Feels Different

By the time teeth feel loose, or shift position, the bone that holds them has been affected. The CDC also flags any change in the way your teeth fit together when you bite, and any change in how a partial denture fits. Both are late signs.

Why Gums Become Unhealthy

Gum disease starts with plaque, the sticky bacterial film that forms on teeth every day. When plaque is left along and under the gumline, it hardens into tartar that brushing cannot remove, and the bacteria trigger the inflammation that damages gum tissue and bone.

NIDCR identifies smoking and other tobacco use as the single most significant risk factor, and notes that tobacco also makes treatment less successful. The CDC adds diabetes, poor oral hygiene, medications with oral side effects, stress, genetics, crooked teeth that are hard to clean, grinding, and some underlying medical conditions.

NIDCR reports that 42.2% of adults aged 30 and older in the United States have periodontitis, and the CDC puts the figure at about 60% for adults 65 and older.

Gingivitis or Periodontitis: Why the Difference Matters

Gingivitis is the mild stage. The gums are red, swollen, and bleed easily, usually with little or no pain, and the AAP confirms it is reversible with professional treatment and good care at home. A cleaning plus consistent brushing and flossing can bring the tissue back.

Periodontitis is the advanced stage, and its defining feature is bone loss around the teeth. The CDC states that periodontitis cannot be reversed, though it can be slowed down and managed with professional treatment. Treatment usually starts with a non-surgical deep cleaning known as scaling and root planing, sometimes with a prescribed rinse or medication. In advanced cases, treatment may also include gum surgery, which is usually handled by a periodontist. If you want the full comparison, read the difference between gingivitis and periodontitis.

When to See a Dentist About Your Gums

Book an appointment online if you notice any of these:

• Gums that bleed when you brush, floss, or eat
  
• Red, purplish, swollen, or tender gums that do not settle within a week or two
  
• Gums that have pulled away from your teeth, or teeth that look longer
  
• Pus between the gums and teeth, or a pimple-like bump on the gum
  
• Bad breath or a bad taste that brushing does not fix
  
• Teeth that feel loose, have moved, or fit together differently when you bite
  
• A denture or partial that has suddenly stopped fitting

Do not wait for pain. The AAP points out that gum disease is often silent and may show no symptoms until the advanced stages.

Some situations are urgent. MedlinePlus describes swelling of the upper or lower jaw as a very serious symptom of a tooth abscess and warns that untreated abscesses can lead to life-threatening complications. Go to an emergency room or call 911 if you have facial or jaw swelling along with a fever, swelling that is spreading, or any trouble breathing or swallowing. Call a dentist the same day for a throbbing toothache that will not stop or a bump on the gum that is draining.

How Alpine Dental Helps

Gum problems are easiest to treat when they are caught early, which is what a routine exam is for. An exam lets your dentist measure the pockets around each tooth, note where the gums bleed on contact, and take X-rays to check whether any supporting bone has been lost. Alpine Dental provides cleanings and general dental care at our Lakewood office and in Jackson, and more than 10,000 patients have been treated by our team. If your gums are swollen and painful and you cannot wait for a routine visit, we also offer emergency dental care.

Unhealthy gums give you a warning before teeth are at risk, and the signs are visible if you look for them: color that has changed, tissue that is puffy or tender, blood on the brush, gums creeping back from the teeth. Catching it at the gingivitis stage means it can be reversed. Waiting until teeth feel loose means managing damage instead.

If anything here sounds familiar, our team is glad to take a look. Alpine Dental serves patients in Lakewood, Jackson, and nearby Ocean County communities. 

Call (732) 934-1888 to schedule an exam and cleaning.

Frequently Asked Questions

Can unhealthy gums heal on their own?

Gingivitis can improve once the plaque is removed, but it will not clear up on its own while the buildup stays. The AAP notes that gingivitis is reversible with professional treatment combined with good home care. Once gum disease has reached periodontitis and bone has been lost, the CDC states that it cannot be reversed, only slowed and managed.

Are dark or brown gums a sign of a problem?

Not by themselves. Naturally darker or brown-toned gum tissue is normal, and what matters is whether the color is even and the tissue is firm. Be concerned about a change from your own normal, especially new redness at the gumline, puffiness, or bleeding, and have any single discolored patch or sore that lasts more than two weeks checked by a dentist.

Should I stop brushing if my gums bleed?

No. Bleeding signals inflamed tissue, and backing off lets plaque collect along the gumline. Keep brushing twice a day gently with a soft brush and clean between your teeth daily. The National Institute on Aging advises seeing your dentist if brushing or flossing makes your gums bleed or hurts your mouth.

How long does it take for gums to look better?

There is no fixed timeline, and it depends on how much buildup there is and what stage the disease has reached. Mild inflammation often improves within a few weeks of consistent plaque removal at home combined with a professional cleaning. Gums that stay red, swollen, or bleeding after that need to be reassessed, because deeper pockets will not respond to brushing alone.

SOURCES:

• https://www.nidcr.nih.gov/health-info/gum-disease
• https://www.nidcr.nih.gov/research/data-statistics/periodontal-disease/adults
• https://www.cdc.gov/oral-health/about/gum-periodontal-disease.html
• https://www.mouthhealthy.org/all-topics-a-z/gum-disease/
• https://www.perio.org/for-patients/gum-disease-information/
• https://www.nia.nih.gov/health/teeth-and-mouth/taking-care-your-teeth-and-mouth
• https://medlineplus.gov/ency/article/001060.htm