Gingivostomatitis
Painful inflammation and sores of the gums and mouth lining
Quick Facts
- Type: Mouth and gum infection
- Who it affects: Most common in young children
- Common cause: Herpes simplex virus
- Main concern: Pain and avoiding dehydration
Overview
Gingivostomatitis is a painful inflammation of the gums (gingiva) and the lining of the mouth (stomatitis). It causes redness, swelling, and clusters of sores or ulcers that can make eating and drinking uncomfortable.
It most often affects young children and is frequently caused by a first infection with the herpes simplex virus, the same virus responsible for cold sores. Although the sores can be distressing, the condition is usually self-limiting and resolves within one to two weeks. The main goals of care are easing pain and preventing dehydration, since mouth pain can make a child reluctant to drink.
Although it most often affects toddlers and preschoolers having their first encounter with the herpes virus, it can occasionally affect older children and adults. In healthy people it is uncomfortable but rarely dangerous, and the body's immune system clears the infection on its own.
Symptoms
Symptoms often begin with a general feeling of being unwell before the mouth sores appear.
- Painful, red, and swollen gums that may bleed easily
- Multiple small sores or ulcers on the gums, tongue, lips, and inside of the cheeks
- Fever, often appearing before the sores
- Bad breath
- Drooling, especially in young children
- Difficulty eating and drinking due to pain
- Swollen, tender glands in the neck
- Irritability and reduced appetite
Because mouth pain can keep a child from drinking, watch closely for signs of dehydration such as dry mouth, fewer wet diapers, and reduced energy.
Causes
The most common cause is a first-time (primary) infection with the herpes simplex virus, usually type 1. The virus spreads through saliva and close contact, which is why it is common in young children in group settings. After the first infection, the virus can stay dormant in the body and may later reactivate as cold sores.
Other causes of gingivostomatitis include other viral infections, certain bacterial infections, and irritation or poor mouth hygiene. Some mouth sores are due to non-infectious conditions, so the pattern of illness helps identify the cause.
Risk Factors
- Young age, particularly toddlers and preschool children
- Close contact with others who have cold sores or active infection
- Attending group childcare or school
- A weakened immune system
- Poor mouth hygiene
- Recent illness or stress that lowers resistance
Diagnosis
Gingivostomatitis is usually diagnosed by examining the mouth and considering the symptoms and the person's age.
- Clinical examination: The appearance and pattern of the gum and mouth sores often make the diagnosis clear.
- Swab or laboratory tests: Occasionally used to confirm herpes simplex virus or another cause when the picture is unclear.
- Assessment for dehydration: Checking hydration, especially in young children who are not drinking well.
Treatment
Most cases resolve on their own, so treatment focuses on relieving pain, maintaining fluids, and supporting comfort.
- Pain relief: Acetaminophen or ibuprofen, used as directed for the person's age.
- Fluids: Frequent sips of cool water or other fluids; cold, soft, bland foods are easier to manage.
- Soothing mouth care: Gentle rinses or topical preparations a clinician may recommend.
- Antiviral medicine: May be prescribed early for herpes-related cases, especially if severe or in people with weakened immunity.
- Good mouth hygiene: Gentle cleaning to prevent secondary infection as it heals.
Symptoms usually improve over one to two weeks. Avoid acidic, salty, or spicy foods that can sting the sores.
Prevention
- Encourage frequent handwashing
- Avoid sharing cups, utensils, and toys that go in the mouth
- Keep children away from close contact with people who have active cold sores
- Do not let anyone with a cold sore kiss a young child
- Maintain good daily mouth and gum hygiene
When to See a Doctor
See a doctor if mouth sores are severe, last more than about two weeks, or are accompanied by a high fever, or if a child cannot eat or drink enough.
Seek urgent care for signs of dehydration such as very dry mouth, no tears when crying, far fewer wet diapers, sunken eyes, or unusual sleepiness. Also seek prompt care if there is difficulty breathing or swallowing, significant swelling, or if the person has a weakened immune system, as infections can be more serious in that case.
Frequently Asked Questions
Is gingivostomatitis contagious?
Yes, when it is caused by the herpes simplex virus it spreads through saliva and close contact. To reduce spread, encourage handwashing, avoid sharing cups and utensils, and keep children away from people with active cold sores.
How long does gingivostomatitis last?
Most cases improve over one to two weeks. Pain is usually worst in the first few days. The main goals during this time are easing pain and keeping the child drinking enough fluids.
How can I help my child eat and drink with mouth sores?
Offer cool, soft, bland foods and frequent sips of cool fluids, and use age-appropriate pain relief such as acetaminophen or ibuprofen as directed. Avoid acidic, salty, or spicy foods that sting. Watch for signs of dehydration and seek care if your child cannot drink enough.
Is it the same as a cold sore?
They are caused by the same herpes simplex virus, but gingivostomatitis is usually the first, more widespread infection affecting the whole mouth and gums, often in young children. Cold sores are later, smaller reactivations, typically on the lip.
When should I worry about dehydration?
Seek urgent care if your child has a very dry mouth, no tears when crying, far fewer wet diapers, sunken eyes, or unusual sleepiness. Mouth pain can make children reluctant to drink, so monitoring fluids is important.
References
- American Academy of Pediatrics.
- Mayo Clinic. Cold sore and oral herpes.
- MedlinePlus, U.S. National Library of Medicine. Herpetic gingivostomatitis.
- Centers for Disease Control and Prevention (CDC). Herpes simplex virus.