That Little Bump on Your Gum Might Be Telling You Something
Have you noticed a small, pimple-like bump on your gum and brushed it off as nothing? That bump could be a dental fistula — and ignoring it can lead to consequences far more serious than a cosmetic annoyance. At New Image Dental LTD, Dr. Brian J. Fitz has spent over 30 years treating patients in Streamwood, and one thing he sees again and again is people waiting too long on a symptom just like this one.
If you’re noticing a bump, a bad taste, or ongoing sensitivity, don’t wait for it to get worse. Call New Image Dental LTD at (630) 837-0887 and we’ll get you in to take a look.
About Dr. Brian J. Fitz
Dr. Brian J. Fitz has practiced general and cosmetic dentistry in the Streamwood area for over 30 years. He’s a graduate of the University of Illinois College of Dentistry, where he received the Stanley D. Tillman Award for rendering complete oral treatment of the highest quality, along with an award for outstanding clinical achievement in comprehensive patient care. He holds memberships in several professional organizations, including the American Dental Association, the Chicago Dental Society, and the American Academy of Implant Dentistry.
What Is a Dental Fistula?
A dental fistula (also called a sinus tract, or informally a “gum boil”) is a small channel that forms in the gum tissue to drain pus from an infection deep inside a tooth or the jawbone. It’s your body’s own pressure-relief valve for a bacterial infection it can’t clear on its own.
It typically shows up as a raised, white, yellow, or red bump on the gums, sometimes with a small opening at the tip. Many patients also describe a salty or bitter taste in their mouth — that’s the fistula actively draining.
What Causes a Dental Fistula?
A fistula is always a sign of an underlying infection. In Dr. Fitz’s experience, the most common causes are:
- A tooth abscess — a bacterial infection at the root tip or inside the pulp
- Advanced gum disease (periodontitis) that has spread into the bone
- A root canal that didn’t fully clear the infection the first time
- A cracked or fractured tooth that let bacteria in
- Untreated trauma to a tooth
Symptoms to Watch For
Here’s what makes fistulas tricky: because the tract is actively draining the infection, pressure is relieved and pain is often minimal or absent. Patients frequently tell Dr. Fitz they weren’t in pain at all, which is exactly why the bump got ignored for weeks or months. Don’t let the absence of pain fool you. Watch for:
- A small bump or blister on the gum near a tooth
- Persistent bad breath or a foul taste
- Mild to moderate tooth or gum sensitivity
- Swelling in the gums or face
- A bump that seems to “pop,” drain, and then return
Why You Shouldn’t Ignore It
A dental fistula never resolves on its own. It may seem to come and go, but the infection underneath stays active the entire time. Left untreated, it can lead to:
- Bone loss — the infection slowly destroys the jawbone around the tooth
- Tooth loss — enough damage can make a tooth impossible to save
- Spread of infection — in rare but serious cases, oral bacteria can enter the bloodstream and reach the heart, lungs, or brain
- Damage to neighboring teeth — the infection doesn’t necessarily stay contained to one spot
How Dr. Fitz Diagnoses a Dental Fistula
Dr. Fitz starts with a visual exam and gently probes the area to assess depth, then takes a dental X-ray to trace the tract back to its source and see how far the infection or bone loss extends. In some cases, he’ll thread a small piece of gutta-percha (a rubber-like material) into the tract so it shows up clearly on the X-ray and confirms exactly where the infection originates.
Treatment Options
The right approach depends on how advanced the infection is and whether the tooth itself can be saved.
Root canal treatment. This is the most common fix. If the tooth is salvageable, Dr. Fitz removes the infected pulp, cleans and seals the canals, and places a crown. Once the infection source is gone, the fistula typically heals on its own within a few weeks.
Antibiotics. These can’t cure a fistula on their own — they can’t penetrate the dead tissue inside an infected tooth — but they’re sometimes used alongside treatment to help control spread.
Tooth extraction. If the tooth is too far gone to save, extraction removes the infection source entirely. Dr. Fitz can walk you through replacement options like dental implants or bridges afterward.
Gum or bone surgery. In more advanced cases where infection has reached the surrounding bone or tissue, surgical debridement or bone grafting may be needed to restore health and structure.
Can You Prevent a Dental Fistula?
In most cases, yes. Fistulas result from infections that build up over time, often starting with cavities, gum disease, or untreated trauma. A few habits go a long way:
- Brush twice daily and floss every day
- Keep up with regular cleanings and checkups
- Treat cavities and gum disease early, before they progress
- Wear a mouthguard during contact sports
- Never brush off a toothache, sensitivity, or unusual bump — get it checked
When to Call New Image Dental LTD
If you notice a bump, blister, or recurring sore on your gums — with or without pain — don’t wait it out. Early treatment is almost always simpler, faster, and less costly than waiting until it progresses. Call (630) 837-0887 and Dr. Fitz’s team will get you scheduled.
This article is for general informational purposes and isn’t a substitute for an in-person dental exam. If you’re experiencing facial swelling, fever, or difficulty swallowing along with a gum bump, seek care right away — call our office at (630) 837-0887 or go to your nearest emergency room.
What Streamwood Patients Say
“I was in tremendous pain, hadn’t slept in 24 hours, and New Image Dental was able to get me in and rescue me. From the front desk to the dental assistant to Dr. Fitz — they are amazing.” — Philip T.
“New Image Dental has been providing dental care for my family for 30 years. Never disappointed! Dr. Fitz is personable and professional — an outstanding dentist!” — Jim K.
Read more patient reviews on our Patient Reviews page or find us on Google.
Ready to Get That Bump Checked?
Don’t wait on a symptom that won’t resolve itself. If you’re in Streamwood, IL or the surrounding area and have noticed a bump on your gum or any unusual oral symptoms, we’re here to help — call us today at (630) 837-0887 or book your appointment onlinenow.


