Gingival Hyperplasia
Overview
Gingival hyperplasia means your gums have grown larger than normal. 'Gingival' means gum, and 'hyperplasia' means extra tissue has formed. The gum tissue becomes thick, puffy, or bumpy, and it can creep over part of your teeth so they look shorter than they used to. It is not a disease on its own. It is a sign that something else is going on, such as a build-up of plaque, a side effect of a medicine, hormone changes, or another health condition.
Key facts
- Gums look swollen, puffy, or lumpy, and may cover more of the tooth than usual, making teeth look small.
- Common triggers include plaque build-up, certain long-term medicines, hormone changes, and some health conditions.
- It is not usually dangerous, and it often improves once the cause is found and treated, along with good daily mouth care.
- Never stop a prescribed medicine on your own. If you think a medicine is causing it, talk to the person who prescribed it.
It is fairly common. Dentists and doctors see gum overgrowth regularly, and it is a well-known side effect of a few groups of medicines taken for other health conditions.
It can affect people of any age. Children and teenagers can get it, especially during puberty or with certain inherited conditions. Adults get it more often from plaque build-up, medicines, or health conditions. People who wear braces, dentures, or mouth guards that do not fit well are also more likely to have it.
Symptoms
- Swelling of the mouth, tongue, or throat that makes it hard to breathe or swallow
- Sudden swelling of the face or lips with a spreading rash, wheezing, or breathing trouble — this could be a serious allergic reaction
- Gum or mouth bleeding that will not stop even after firm pressure for 10 to 15 minutes
- A swollen, hot, painful area on the face or neck that is spreading quickly, especially with a high fever
- ⚠Pus or a bad taste coming from the gums, or a fever with mouth pain
- ⚠Severe gum pain that stops you eating or drinking normally
- ⚠A tooth that has become loose along with swelling
- ⚠A denture or brace causing a painful sore that is getting worse
- ⚠Gums that are very red, swollen, and bleeding a lot
Common symptoms
- Gums that look swollen, puffy, shiny, or lumpy
- Gum tissue that feels firm or rubbery instead of soft
- Gums that bleed easily when you brush or floss
- Gum tissue growing over part of the teeth, so the teeth look shorter
- The small spaces between teeth filling in with gum tissue
- Bad breath or an odd taste in the mouth
- Soreness or discomfort when chewing or brushing
- Gums that feel tender when touched
Symptoms in children
- Teeth that look small because gums have grown over them
- Gums that bleed when brushing, which may make a child avoid brushing
- Reluctance to eat crunchy or hard foods because of sore gums
- Gum overgrowth noticed during puberty, when hormone changes can affect gums
- In some children, overgrowth linked to an inherited condition or a long-term medicine
Symptoms in older adults
- Gum overgrowth under a denture, which can make the denture feel loose or uncomfortable
- More plaque build-up if brushing or flossing is harder due to arthritis or shaky hands
- Gum changes linked to long-term medicines taken for blood pressure, heart conditions, or other health problems
- Dry mouth, which can make gum problems worse
- Gums that bleed more easily, especially if blood-thinning medicine is being taken
Causes
Main causes
- Plaque and tartar build-up on the teeth, which irritates the gums (gum inflammation)
- Side effects of some long-term medicines, including certain epilepsy medicines, some blood pressure medicines, and medicines that calm the immune system
- Hormone changes, such as during puberty, pregnancy, or menopause
- Health conditions such as low vitamin levels, low numbers of certain white blood cells, or some inherited conditions
- Dentures, braces, or mouth appliances that do not fit well and rub the gums
- Mouth breathing or a dry mouth, which can make gums more sensitive
- Rarely, a more serious underlying condition, which is one reason a dentist may suggest blood tests
Risk factors
- Not brushing or cleaning between the teeth regularly
- Taking certain medicines long term
- Being pregnant or going through puberty
- Wearing braces, dentures, or a mouth guard
- Smoking
- A dry mouth
- Conditions that affect the immune system
- A family history of inherited gum overgrowth
When to see a doctor
See a doctor urgently if:
- Bleeding from the gums that will not stop
- Pus, a fever, or feeling generally unwell with gum swelling
- Severe pain that stops you eating or drinking
- A loose tooth with swelling
- Swelling spreading to your face or neck — call your local emergency number if you also have trouble breathing or swallowing
Book a routine appointment if:
- Your gums look bigger, puffier, or lumpier than usual
- Your teeth look shorter because gums have grown over them
- Your gums bleed when you brush or floss
- You wear a denture or brace that suddenly fits differently
- You have started a new long-term medicine and notice gum changes — book a dental check-up and mention it to the person who prescribed the medicine
Diagnosis
A dentist or doctor will look inside your mouth and feel your gums. They will ask about your health, your medicines, and how you care for your teeth. They may gently measure the depth of the small gaps between your gums and teeth with a thin probe. This is quick and usually not painful.
Tests that may be done
- A review of all your medicines, including ones you buy without a prescription
- Dental X-rays to check the teeth and bone underneath
- Blood tests, such as vitamin levels, blood count, or blood sugar
- A referral to a gum specialist (periodontist) or another doctor if needed
- Rarely, a small sample of gum tissue (a biopsy) sent to a lab
What to expect at your appointment
The exam is usually quick and painless. You may be asked to come back for a cleaning or a follow-up visit. If a medicine is thought to be the cause, you may be asked to speak to the doctor who prescribed it — but you should not stop the medicine yourself.
Treatment
Treatment has two parts: dealing with the cause and keeping your gums as clean and healthy as possible. You will often see a team — your dentist, a dental hygienist, and your GP or the doctor who manages your other health conditions.
Self-care at home
- Brush twice a day with a fluoride toothpaste, using a soft brush and gentle small circles
- Clean between your teeth once a day with floss or small interdental brushes
- Rinse gently with warm salt water if your gums feel sore
- Stop smoking if you smoke — ask for support to quit
- Drink water regularly, especially if you have a dry mouth
- Keep dental check-ups, even when your gums feel fine
- Write down all your medicines and bring the list to appointments
Medical treatments
Your dentist or hygienist will usually start with a thorough professional clean to remove plaque and tartar, and will show you the best way to clean your gums at home. If the gums are infected, the dental team will treat the infection. If a medicine seems to be the cause, your prescriber may be able to adjust it or switch to another option — this is a decision for them, and you should never stop or change a medicine on your own. Treating any underlying health condition, such as a vitamin shortage or poorly controlled blood sugar, can also help your gums. Regular follow-up visits, sometimes every few months, are common.
When is surgery considered?
If your gums stay overgrown after the cause has been managed and your home care is good, your dentist may offer a small procedure to trim the extra gum tissue (called a gingivectomy). It is usually done with a local anaesthetic to numb the area, and most people recover within a week or two. It is only suggested when it would help your comfort, cleaning, or appearance.
Living with this condition
Most people manage gum overgrowth well with a steady daily routine. Brush gently twice a day, clean between your teeth, and keep dental appointments. Notice any changes — bleeding, tenderness, or gums growing further — and mention them at your next visit. Keep an up-to-date list of your medicines, since this is often the key clue.
Lifestyle tips
- Keep a simple daily mouth care routine, even on busy days
- If your hands are stiff or shaky, try an electric toothbrush or ask for help from a dental hygienist
- Stop smoking, and avoid chewing tobacco
- Limit sugary snacks and drinks between meals
- See your dentist regularly, and ask how often you should come
- Tell every health professional you see about your gum problem and your medicines
Diet and exercise
There is no special diet that cures gum overgrowth, but healthy eating helps your whole mouth. Choose water instead of sugary drinks, and eat fruit and vegetables regularly. If your gums are sore, softer foods can help for a while. Regular exercise supports general health and helps keep blood sugar steady, which is good for your gums too.
Mental health and emotional wellbeing
Gum changes can affect how you feel about your smile and can make you self-conscious or worried. That is a normal reaction, and it is worth mentioning. If it is affecting your mood, sleep, or confidence, talk to your dentist, your GP, or someone you trust. Support is available, and you do not have to handle it alone.
Prevention
Not all gum overgrowth can be prevented, because some causes are inherited or come from a medicine you need. But good daily mouth care, regular dental check-ups, and managing other health conditions greatly lower your risk and keep your gums healthier.
Screening programmes
Regular dental check-ups are the best screening. If you start a long-term medicine that can affect the gums, ask your prescriber or pharmacist whether you should book a dental check-up and how often.
Complications
If left untreated
- Gum disease, which can damage the tissue and bone that hold your teeth
- Tooth decay, because extra gum tissue can make cleaning harder
- Teeth that shift, become loose, or look different
- Gum infection, which can be painful and cause pus or bad breath
- Difficulty eating, speaking, or wearing a denture comfortably
- In children, worry about appearance or trouble with brushing
Long-term outlook
The outlook is usually good. Once the cause is found — whether it is plaque, a medicine, hormones, or another health condition — most people see real improvement with good mouth care and regular dental visits. Some people need a small gum procedure, and that is usually straightforward. With the right support, most people keep their gums and teeth healthy for the long term.
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Health guidance differs by country and region. This page is general education and may not match the guidelines, medicines, or practice where you live. Discuss your concerns with your own doctor or healthcare provider, and follow local guidance where it exists.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
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Sources and guidance
No guideline names this topic
No health guideline or clinical chapter that names this exact topic is cited here. This page is for general education and information only. It is not a diagnosis, a treatment plan, or personal medical advice. Check with your own doctor and follow their advice. If symptoms are severe, sudden, or worrying, get medical care promptly, and call your local emergency number in an emergency. Ruqelo LLC is not responsible for medical or legal outcomes from decisions based on this information.
Last updated: October 24, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.
Guidance may differ by country or region. Confirm local recommendations with a qualified healthcare provider.