Gingival Hyperplasia: Causes, Symptoms and Treatment
Noticing that your gums look fuller, puffier or seem to be covering more of your teeth than usual can be unsettling. Sometimes this is a sign of inflammation — but in some cases, it may point to a condition called gingival hyperplasia, where gum tissue actually grows and enlarges beyond its normal boundaries. Understanding what this means, what might be causing it, and when to seek professional guidance can make a meaningful difference to your oral health and your peace of mind.
This article explains what gingival hyperplasia is, how it differs from common gum disease, its known causes — including certain medications — and the range of approaches used to manage it.
What Is Gingival Hyperplasia?
Quick Answer: Gingival hyperplasia is a condition in which the gum tissue (gingiva) grows abnormally, causing it to enlarge and potentially cover a greater portion of the teeth. It is not simply inflamed gums; it involves an increase in the number of gum cells. It can result from medications, inflammation, systemic conditions or genetic factors, and may require professional assessment and tailored management.
How Gum Overgrowth Differs From Gingivitis and Periodontitis
One of the most common misconceptions is that swollen-looking gums are always a sign of gingivitis or periodontitis. While these conditions can certainly cause gum tissue to appear enlarged due to inflammation, gingival hyperplasia is a distinct process.
• Gingivitis is caused by plaque build-up leading to gum inflammation. The gums may look red, swollen and bleed easily, but the tissue has not actually increased in volume — it is engorged with fluid and blood.
• Periodontitis is a more advanced form of gum disease in which infection causes damage to the bone and connective tissue supporting the teeth.
• Gingival hyperplasia involves a genuine increase in gum tissue volume, often caused by an overgrowth of fibrous or epithelial cells. The gums may appear firm and pale pink rather than red and spongy, though inflammation can co-exist and worsen the appearance.
This distinction is clinically important because the causes, management strategies and outcomes differ between these conditions. A dentist or periodontist will assess the gums carefully to identify which condition — or combination of conditions — is present.
Common Causes of Gingival Hyperplasia
Gum overgrowth can arise from several different root causes. It is rarely a condition with a single universal explanation, which is why a thorough clinical assessment is valuable.
Inflammation and Poor Oral Hygiene
Persistent plaque and tartar build-up can trigger chronic inflammatory gingival hyperplasia. When plaque is not removed effectively, the bacteria it harbours cause the gums to respond. Over time, this ongoing inflammatory process can contribute to true tissue overgrowth, particularly in people whose gums are already prone to this response.
Good oral hygiene — regular brushing, interdental cleaning and professional scale and polish appointments — can reduce this form of gum overgrowth, though the extent to which tissue returns to normal will depend on the severity and duration of the problem.
Drug-Induced Gingival Hyperplasia
Certain prescription medications are associated with gingival overgrowth as a known side effect. This is one of the most well-documented causes and is sometimes referred to as drug-induced gingival overgrowth (DIGO).
The three main medication categories associated with this side effect are:
• Calcium channel blockers (used to manage high blood pressure and certain heart conditions), particularly amlodipine, nifedipine and diltiazem
• Anticonvulsants (used to manage epilepsy), most notably phenytoin — where the association has been recognised for decades
• Immunosuppressants, particularly ciclosporin, used following organ transplantation
Not everyone who takes these medications will develop gingival hyperplasia, and severity can vary considerably. Research suggests that existing plaque and gingival inflammation may increase the likelihood or severity of this side effect.
Important: If you are taking any prescribed medication and notice changes in your gums, do not stop or change your medication without first speaking to the clinician who prescribed it. Any concern about medication-related gum changes should be raised with both your prescribing doctor and your dentist, who can work together to consider appropriate options.
Hormonal Factors
Hormonal changes — such as those occurring during pregnancy, puberty or in association with certain hormonal conditions — can make gum tissue more reactive and susceptible to enlargement, particularly in the presence of plaque. Pregnancy-related gum changes, sometimes called pregnancy gingivitis or in more pronounced cases pregnancy epulis, can occasionally involve tissue overgrowth.
Hereditary Gingival Fibromatosis
Hereditary gingival fibromatosis (HGF) is a rare, genetically inherited condition in which the gums slowly and progressively enlarge, typically beginning around the time the permanent teeth erupt. The tissue is usually firm, non-tender and pale pink rather than inflamed.
Symptoms associated with hereditary gingival fibromatosis may include:
• Gradual, significant gum enlargement that may partially or fully cover the teeth
• Difficulty maintaining oral hygiene due to excess tissue
• Challenges with chewing or speaking in more severe cases
• Delayed tooth eruption in some instances
HGF is distinct from other forms of hyperplasia because it has a genetic basis and is not primarily driven by plaque, medication or inflammation. Its management generally involves surgical reduction of the gum tissue, with awareness that some degree of recurrence is possible over time.
Recognising the Symptoms
Gingival hyperplasia can present differently depending on its underlying cause, but common signs may include:
• Gums that appear enlarged, covering more of the tooth surface than expected
• Gum tissue that feels firm rather than soft and spongy
• Difficulty cleaning between the teeth due to excess tissue
• Changes in the appearance of the smile or the visible proportion of teeth
• Discomfort or sensitivity, particularly if inflammation is also present
• Bleeding when brushing or flossing (more commonly when inflammation co-exists)
The appearance of gums affected by hyperplasia can range from mild overgrowth at the edges to more extensive tissue coverage in advanced or untreated cases. It is worth noting that early-stage changes can be subtle and are often best identified by a dental professional during a routine examination.
Can Gingival Hyperplasia Go Away on Its Own?
The answer to this depends largely on the cause.
Inflammation-driven gingival overgrowth may partially or fully resolve with thorough plaque removal and professional cleaning, particularly if it is caught at an early stage. Improving oral hygiene habits consistently over time can help reduce the inflammatory component.
However, drug-induced gingival hyperplasia may not resolve without addressing the medication — and even with improved oral hygiene, the tissue overgrowth may persist as long as the causative drug is continued. In some cases, a clinician may be able to consider alternative medications, but this decision rests with the prescribing doctor and must be based on the patient's overall medical needs.
Hereditary gingival fibromatosis does not resolve spontaneously and typically requires surgical management.
It is generally not advisable to adopt a wait-and-see approach for a prolonged period without seeking a professional opinion, as untreated overgrowth can create challenges for oral hygiene and may worsen over time.
Treatment Options for Gingival Hyperplasia
Management of gingival hyperplasia is not one-size-fits-all. The appropriate approach will depend on the underlying cause, the severity of overgrowth, the patient's overall health and their individual circumstances.
Professional Cleaning and Periodontal Care
For inflammation-related cases, the first step is usually professional scaling and improved oral hygiene. Removing the plaque and tartar that are driving the inflammatory response may be sufficient to allow the gum tissue to reduce in volume, particularly in earlier-stage cases.
Medication Review
Where medication is the likely cause, a referral back to the prescribing clinician may be appropriate. If a suitable alternative medication exists and can safely be substituted, this may allow the gums to improve — though this process can take time and the degree of improvement varies.
Gingivectomy
When gum overgrowth is significant, persistent or does not resolve through non-surgical means, a surgical procedure called a gingivectomy may be considered. This involves the careful removal of excess gum tissue to restore a healthy gum margin and improve access for oral hygiene.
Gingivectomy may be carried out using a scalpel or laser, depending on the clinical situation and equipment available. It is typically performed under local anaesthetic. As with all clinical procedures, it carries potential risks and limitations, and suitability should be discussed thoroughly with a qualified dental professional. In cases associated with ongoing medication use or hereditary factors, there is a possibility that overgrowth may recur over time.
Long-Term Maintenance
Regardless of the treatment approach, long-term monitoring and consistent oral hygiene maintenance are considered important aspects of managing gingival hyperplasia. Regular dental appointments allow any recurrence or progression to be identified and addressed promptly.
Home Oral Care and Prevention
Whilst home care alone cannot resolve all forms of gingival hyperplasia, it plays an important supporting role in managing the condition and reducing the risk of inflammatory factors making it worse.
Practical oral care steps that may help include:
• Brushing twice daily with a fluoride toothpaste, using a gentle technique that cleans along the gumline
• Cleaning between the teeth using interdental brushes or floss daily to remove plaque from areas a toothbrush cannot reach
• Attending regular dental check-ups and professional cleaning appointments as recommended by your dentist
• Informing your dentist of any medications you are taking, including those that may be associated with gum changes
• Avoiding smoking, which is associated with poorer gum health outcomes generally
If you have been prescribed medication that is known to affect gum tissue, your dentist may recommend more frequent professional cleaning to minimise the impact of plaque on already-susceptible gum tissue.
Potential Complications of Untreated Gum Overgrowth
When gingival hyperplasia is left unaddressed, it can create a number of challenges over time:
• Excess gum tissue creates pockets and crevices that are difficult to clean, allowing plaque and bacteria to accumulate
• This in turn increases the risk of tooth decay and gum disease progressing
• Significant overgrowth can affect chewing comfort and, in some cases, speech
• Changes to the appearance of the gums and teeth can affect confidence and quality of life
• In severe or long-standing cases, the positioning of the teeth may be affected
These complications reinforce the value of early professional assessment rather than prolonged self-management.
When to Seek Professional Dental Advice
You may wish to book a dental assessment if you notice:
• Your gums appearing larger or covering more of your teeth than usual
• Persistent gum changes alongside a medication you have recently started
• Difficulty cleaning your teeth due to excess gum tissue
• Unexplained gum changes that have not improved with good oral hygiene
A dentist will be able to examine your gums, consider the likely cause and discuss whether further investigation or treatment is appropriate for your situation.
Frequently Asked Questions
1. Is gingival hyperplasia the same as gum disease?
No. Gingival hyperplasia is a distinct condition involving the actual overgrowth of gum tissue, rather than inflammation alone. While gum disease (such as gingivitis or periodontitis) can contribute to or worsen hyperplasia, the two are not the same thing. Gum disease involves infection and inflammation caused by bacteria in plaque, whereas gingival hyperplasia relates to an increase in gum tissue volume that may have several different underlying causes.
2. Can gingival hyperplasia affect eating or speaking?
In mild to moderate cases, most people do not experience significant difficulties with eating or speaking. However, in more pronounced cases — particularly with hereditary gingival fibromatosis or severe drug-induced overgrowth — the excess tissue may make chewing uncomfortable or affect the way certain sounds are formed. These functional impacts are one reason why professional assessment and management are considered important.
3. Will my gums return to normal if I change my medication?
This depends on several factors, including how long the medication has been taken, the degree of overgrowth and your overall gum health. In some people, gum tissue does improve after switching to an alternative medication, particularly when this is combined with improved oral hygiene. However, the improvement may be partial, and in some cases additional dental treatment may still be needed. Any medication changes must be discussed with and managed by your prescribing clinician.
4. Is a gingivectomy always necessary for gingival hyperplasia?
No, not always. Gingivectomy is typically considered when gum overgrowth is significant, persistent and does not respond adequately to non-surgical management such as professional cleaning or medication review. For mild inflammation-related cases, improved oral hygiene and professional cleaning may be sufficient. The appropriateness of surgery depends on the individual's specific circumstances and would be discussed fully with a dental professional before any decision is made.
5. Can children or teenagers develop gingival hyperplasia?
Yes. Adolescents taking anticonvulsant medications such as phenytoin, or those with hereditary gingival fibromatosis, may develop gum overgrowth. Puberty-related hormonal changes can also make gum tissue more reactive to plaque. If a parent or guardian notices unusual gum changes in a child or teenager, it is worthwhile raising this with a dentist, particularly if the young person is taking any prescribed medications.
6. How is hereditary gingival fibromatosis different from other forms of gum overgrowth?
Hereditary gingival fibromatosis is caused by genetic mutations affecting gum tissue development, rather than by inflammation, plaque or medication. The gum tissue in HGF is typically firm, pale and non-painful, and enlargement is usually slow and progressive. Because it has a genetic basis, it does not resolve with oral hygiene improvements alone and tends to recur after surgical removal, requiring ongoing monitoring. It is a rare condition and is usually identified in childhood or early adolescence.
7. What are the early signs of gingival hyperplasia I should watch for?
Early signs can be subtle and may include gums that look slightly fuller at the edges, or interdental papillae (the gum tissue between the teeth) that appear larger than expected. You might also notice that it feels harder to clean between certain teeth. Because early-stage changes can be easy to overlook, routine dental check-ups are valuable for identifying gum changes before they become more significant.
8. Can gingival hyperplasia recur after treatment?
Yes, recurrence is possible, particularly in cases related to ongoing medication use or hereditary conditions. Even after a gingivectomy, if the underlying cause — such as a causative drug or genetic predisposition — has not been addressed, the tissue may gradually regrow over time. This is why long-term monitoring, consistent oral hygiene and regular dental appointments are considered an important part of post-treatment care.
9. Is gingival hyperplasia painful?
Not always. Pure fibrous gum overgrowth — such as that seen in drug-induced or hereditary forms — is often painless, particularly in the absence of infection. However, if significant inflammation or infection develops in and around the overgrown tissue, discomfort, tenderness or sensitivity may occur. Any persistent pain or soreness in the gums warrants professional assessment regardless of the cause.
10. Can I manage gingival hyperplasia entirely at home?
For mild, inflammation-related cases, improved oral hygiene and consistent interdental cleaning may help reduce the inflammatory component and support the gums. However, home care alone is unlikely to resolve moderate or severe gum overgrowth, and cannot address medication-related or hereditary causes. Professional assessment is advisable to understand the cause of gum changes and to ensure appropriate management is in place.
Dental Disclaimer
The content in this article is provided for educational and informational purposes only. It is intended to support general understanding of gingival hyperplasia and related gum health topics, and does not constitute professional dental or medical advice. The information presented here does not replace an assessment by a qualified dental professional, and individual symptoms, risk factors and treatment suitability can vary considerably from person to person. If you are concerned about your gum health, any changes in your mouth, or possible side effects of a prescribed medication, please consult a registered dental professional or your GP. Do not alter or stop any prescribed medication without first seeking advice from the clinician responsible for your care.
Written Date: 04 November 2026 Next Review Date: 04 November 2027
Written by Wimpole Dental Editorial Team · reviewed by Wimpole Dental Clinical Team
This article is general information, not personal clinical advice. For a diagnosis and a plan tailored to you, book a consultation with a GDC-registered dentist.
