A pulp polyp is not immediately dangerous, but it signals a level of tooth decay and inflammation that will get worse without treatment. The polyp itself is a fleshy overgrowth of inflamed tissue that pushes out from the inside of a badly decayed tooth. It’s your body’s chronic response to infection, not a tumor or cancerous growth. While the polyp alone won’t threaten your health, the underlying condition can lead to serious complications if you ignore it.
What a Pulp Polyp Actually Is
A pulp polyp, technically called chronic hyperplastic pulpitis, forms when a large cavity exposes the soft tissue inside your tooth (the pulp) to bacteria. Instead of dying off quickly, the pulp tissue in some people responds by growing outward through the cavity opening. This produces a small, rounded mass of inflamed tissue that sits on top of or spills out of the decayed tooth. It’s pinkish-red, has a soft or slightly fibrous texture, and sometimes develops a thin layer of surface tissue that resembles the lining of your gums.
This overgrowth happens most often in children and young adults because their teeth have a generous blood supply that can sustain the tissue’s growth. Research shows pulp polyps are most common in people aged 21 to 30, with another peak in the 11 to 20 age group. Molars are the teeth most frequently affected, since their large, flat surfaces are more prone to deep cavities that expose the pulp.
Why It Usually Doesn’t Hurt
One reason pulp polyps can catch people off guard is that they’re often painless. The tissue grows slowly as a chronic inflammatory response, and the nerve fibers inside the exposed pulp gradually lose sensitivity. Most people notice the polyp because they feel something fleshy in or on top of a back tooth, or because they see bleeding when they chew. Pain and bleeding during eating are possible but not guaranteed. This lack of pain can be misleading. It doesn’t mean the tooth is healthy or stable.
The Real Risks of Leaving It Untreated
The polyp itself isn’t the danger. The danger is what’s happening beneath it. A pulp polyp means the inner tissue of your tooth is already irreversibly inflamed or dying, and bacteria have had long-term access to the inside of the tooth. If this infection isn’t addressed, it can progress in several ways.
The most common next step is an abscess: a pocket of pus that forms at the root tip or in the surrounding bone. Abscesses cause intense, throbbing pain, fever, and swollen lymph nodes in the neck. From there, infection can spread to the jawbone, a condition called osteomyelitis. In rare but serious cases, the infection can reach the soft tissues of the head, neck, or chest. These spreading infections can become life-threatening if they compromise your airway or enter the bloodstream.
None of this happens overnight. A pulp polyp typically represents months or even years of slow decay. But the longer you wait, the fewer options you have to save the tooth, and the higher the risk that infection advances beyond the tooth itself.
How Dentists Identify It
A pulp polyp can look similar to a gingival polyp, which is an overgrowth that comes from the gum tissue rather than the tooth’s interior. Your dentist distinguishes between the two by checking where the tissue originates. A pulp polyp grows from the center of the tooth, through the cavity opening, and tends to be soft and bleeds easily when touched. A gingival polyp, by contrast, originates from the gum line and is firmer. It may fill a cavity in an adjacent tooth but isn’t attached to the pulp.
Getting this distinction right matters because the treatment approach differs. Your dentist will also take X-rays to check the roots and surrounding bone for signs of deeper infection or bone loss.
Treatment Options and What to Expect
Treatment depends on how much tooth structure remains and whether the infection has spread beyond the pulp.
- Root canal therapy: This is the most common approach when the tooth can be saved. The dentist removes all the inflamed and infected pulp tissue, including the polyp, cleans and seals the root canals, then restores the tooth with a crown or similar covering. For many patients, a successfully treated tooth can last years or even decades.
- Pulpotomy: In children with baby teeth or young permanent teeth that haven’t fully developed, a partial removal of the pulp may be enough. The dentist removes the diseased tissue in the crown of the tooth while preserving the healthy root tissue. This is only an option when the remaining pulp shows no signs of irreversible damage.
- Extraction: If the tooth is too broken down to restore, the bone around the roots has deteriorated significantly, or the infection can’t be controlled with other methods, removing the tooth is the safest choice. Extraction is straightforward and eliminates the source of infection entirely.
In most cases, a pulp polyp is very treatable. The tissue is benign, and the tooth can often be saved if you act before the infection destroys too much supporting bone or root structure.
How Quickly You Should Act
Because pulp polyps tend to be painless, it’s tempting to put off treatment. But the absence of pain doesn’t mean the situation is stable. The decay that caused the polyp is still active, the tooth structure is still weakening, and bacteria still have a direct path into your body’s deeper tissues. Every month of delay narrows your treatment options and increases the chance of complications that are genuinely dangerous.
If you’ve noticed a soft, pinkish lump growing from a badly decayed tooth, or you’re bleeding from a tooth when you chew, schedule a dental visit soon. The polyp itself is harmless tissue. What it represents, an open, chronically infected tooth, is the part that needs attention.