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Last updated 05.04.2026

Swollen gums: causes, symptoms and treatment

Swollen gums can signal irritation, plaque buildup, or infection. Learn common causes, how to find relief at home, and when to see your Aspen Dental care team.

Woman grimacing and holding her cheeks in discomfort

Puffy gums. A little bleeding when you brush. Maybe a dull ache you’ve been trying to ignore. If this sounds familiar, you’re not alone. Swollen gums are one of the most common oral health concerns we see at Aspen Dental.


The good news is that swollen gums are often easier to treat when they’re caught early. Sometimes relief starts with a few small changes at home. Other times, it takes a visit with a dental provider to remove buildup, treat an infection or look more closely at what’s going on.


This guide explains what can cause swollen gums, what you can do for relief and when it’s time to see your Aspen Dental care team.


What are the symptoms of swollen gums?

Swollen gums may look redder than usual, feel tender or soft or puff out around your teeth. They may also bleed when you brush or floss. These signs are your gums’ way of telling you something is irritating them. Healthy gums usually look firm and pale pink, and they fit snugly around the base of each tooth. When gums are inflamed, you may notice:


  • Redness or darkening along the gumline

  • Puffiness or bulging between teeth

  • Bleeding when brushing or flossing

  • Tenderness or soreness when touching the gums or eating

  • A soft or spongy texture instead of a firm feel


Mild swelling may improve on its own, especially if it’s caused by something temporary, like brushing too hard or food caught under the gumline. But swelling that lasts, spreads or keeps coming back is often a sign of plaque, irritation or infection, and needs attention.


What are the causes of swollen gums?

The most common cause of swollen gums is gingivitis, which is the earliest stage of gum disease. But there are several possible reasons your gums may feel inflamed. Knowing the cause helps you choose the right next step.


Gingivitis and gum disease

Gingivitis can cause swollen gums when plaque — a sticky film of bacteria — builds up along the gumline. According to the Centers for Disease Control and Prevention, nearly half of adults aged 30 and older have some form of gum disease. If plaque is not removed with daily brushing and flossing, it can harden into tartar. Once tartar forms, it needs to be removed by a dental professional.


The encouraging part? Gingivitis is often reversible when it’s treated early.


Hormonal changes

Hormonal changes can make gum tissue more sensitive to bacteria in your mouth. This is why some people notice swollen or bleeding gums during pregnancy, puberty or menopause.


During pregnancy, this is often called pregnancy gingivitis. Increased hormones can boost blood flow to the gums, making them more likely to swell, feel tender or bleed when brushing.


Infections and abscesses

Sometimes, swelling is localized to one specific area. This can be a sign of a dental abscess or a localized infection caused by untreated tooth decay or a cracked tooth. An infection may present as severe, throbbing pain and often warrants a prompt professional evaluation.


If the swelling comes with throbbing pain, a bad taste, pus, fever or swelling in your face or jaw, don’t wait. Those can be signs of an infection that needs prompt care.


Medications and nutrition

Some prescription medications can cause gum swelling or overgrowth, including certain blood pressure medications and immunosuppressants. Low levels of key nutrients, especially vitamin C, can also weaken gum tissue and make inflammation more likely.


If your swollen gums started after a medication change, let your care team at Aspen Dental know. Don’t stop taking a prescribed medication unless your medical provider tells you to.


Swollen gums around one tooth vs. all gums

Where the swelling shows up can offer an important clue. When swelling is around one tooth, it often means something specific is happening in that area. Common causes include:


  • A dental abscess, or a pocket of infection near the tooth root

  • Food or debris trapped beneath the gumline

  • A cracked or damaged tooth that allows bacteria to enter

  • Pericoronitis, which is inflammation around a partially erupted tooth, often a wisdom tooth


When swelling affects more of your gums, it may point to a broader issue, such as:


  • Gingivitis from plaque buildup

  • Hormonal changes related to pregnancy, puberty or menopause

  • Certain medications that can cause gum overgrowth

  • Nutritional deficiencies, including low vitamin C


Regardless of whether the swelling is localized or widespread, persistent symptoms are worth a professional evaluation. Your Aspen Dental care team can help identify the root cause and recommend the right course of treatment—whether that's a dental cleaning, antibiotic therapy or further care.


Are there natural remedies for swollen gums?

There are a few simple ways to ease swollen gums at home while you keep an eye on your symptoms.


You should still maintain your oral hygiene routine, just ease up a little. Warm saltwater rinses are a good place to start. They can help calm irritation and keep the area clean.


Keep brushing and flossing, but be gentle. Use a soft-bristled toothbrush and light pressure. If flossing feels too uncomfortable, try a water flosser or soft picks. The goal is to clean around the gums without making them more irritated.


Home care can help with comfort, but it is not a substitute for professional dental treatment if plaque buildup, tartar, infection or gum disease is the cause. If swelling lasts, spreads or gets worse, it’s time to have it checked.


When to see a dentist for swollen gums

Schedule a visit with your Aspen Dental office if:


  • Your gums stay swollen for more than a week

  • The swelling comes with severe pain

  • Your gums bleed often when brushing or flossing

  • Your gumline is receding

  • You have persistent bad breath

  • Swelling keeps coming back


Some symptoms need urgent care. Seek immediate help if swelling makes it hard to swallow or breathe, if you develop a fever or if you notice pus draining from your gums. These can be signs of a serious infection.


The sooner you know what’s causing the swelling, the easier it is to treat. Early care can help relieve discomfort and may prevent more involved treatment later.


Your frequently asked questions about swollen gums, answered

What is the fastest way to help heal swollen gums?

Start with gentle brushing using a soft-bristled toothbrush, warm saltwater rinses two to three times a day and an over-the-counter anti-inflammatory, if you can take one safely. These steps may help reduce irritation and discomfort. If swelling lasts more than a week, schedule a dental exam or cleaning to find and treat the cause.


Is antiseptic mouthwash the best option for swollen gums?

Antiseptic mouthwash can help reduce bacteria, but it’s not always the gentlest choice. Alcohol-based rinses may sting or irritate sensitive gum tissue. An alcohol-free therapeutic mouthwash made for gingivitis is often a better option for swollen gums.


How do I treat swollen gums near my wisdom teeth?

Rinse with warm salt water and keep the area as clean as you can. Swelling near wisdom teeth may happen when food and bacteria collect around a partially erupted tooth. If the swelling continues, becomespainful or keeps coming back, have it checked. You may need treatment for infection or, in some cases, wisdom tooth removal.


What should I do if I have swollen gums with braces?

Braces create more places for plaque to collect, so swollen gums are common if cleaning becomes difficult. Brush carefully around each bracket, use an interdental brush or water flosser and consider an alcohol-free antimicrobial rinse. Let your orthodontist and dental provider know, especially if the swelling does not improve.


Can flossing cause swollen gums?

Flossing usually does not cause swollen gums. But if your gums are already inflamed from plaque buildup, flossing can cause bleeding or feel sore at first. With regular gentle flossing, this often improves within a week or two. If bleeding or swelling continues, it’s a sign to schedule a dental visit.


What causes swollen gums during pregnancy?

Pregnancy hormones can make gum tissue more sensitive to plaque bacteria. This can lead to pregnancy gingivitis, which may cause swelling, redness and bleeding. Regular brushing, flossing and dental cleanings can help manage symptoms safely during pregnancy.


Take the first step toward a healthier smile

Swollen gums can make simple things like brushing, eating and smiling uncomfortable. You don’t have to guess what’s causing it or wait for it to get worse.


Your Aspen Dental care team offers affordable, judgment-free care for gum health concerns. Schedule an appointment at a nearby Aspen Dental office today.