Mouth Injury  
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This Care Guide Covers:

  • Injuries to the lips and mouth
  • Includes inner cheeks and the roof of the mouth (hard and soft palate)
  • Front of the mouth includes the tongue. Also, includes the flap under the upper lip (frenulum).
  • Back of the mouth includes the tonsils and the throat
  • Tooth injuries are not covered here

If not, see these topics
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First Aid - Bleeding Mouth
First Aid - Bleeding Mouth

When to Call Your Doctor

Call 911 Now (your child may need an ambulance) If
  • Major bleeding that can't be stopped
  • Trouble breathing
  • You think your child has a life-threatening emergency
Call Your Doctor Now (night or day) If
  • You think your child has a serious injury
  • Minor bleeding won't stop after 10 minutes of direct pressure
  • Gaping cut of tongue or inside the mouth that may need stitches
  • Gaping cut of the lip that may need stitches
  • Pain is SEVERE and not improved 2 hours after taking pain medicine
  • Trouble swallowing fluids or spit
  • Injury to back of the mouth caused by long object (such as a pencil)
  • Can't fully open or close the mouth
  • Fever and mouth looks infected. Signs are increasing pain or swelling after 48 hours. Note: It's normal for a healing wound in the mouth to be white.
  • You think your child needs to be seen urgently
Call Your Doctor Within 24 Hours (between 9 am and 4 pm) If
  • You think your child needs to be seen, but not urgently
  • Mouth looks infected and no fever
Call Your Doctor During Weekday Office Hours If
  • You have other questions or concerns
Parent Care at Home If
  • Minor mouth injury
Causes & Health Information

Types of Mouth Injuries

CARE ADVICE FOR MINOR MOUTH INJURIES

  1. Stop the Bleeding - Upper Lip and Frenulum:
    • Cuts of the inside of the upper lip are very common.
    • Often, the piece of tissue that connects the upper lip to the upper gum is torn. This tissue is called the upper labial frenulum.
    • The main symptom is oozing tiny amounts of blood.
    • This cut always heals perfectly without sutures.
    • For bleeding from the frenulum, use direct pressure. Press the outer lip against the teeth for 10 minutes.
    • Caution: Once bleeding has stopped, don't pull the lip out to look at it. Reason: The bleeding will start up again.
    • It's safe to look at it after 3 days.
  2. Stop the Bleeding - Lower Lip:
    • Most children who fall and bite their lower lip have 2 cuts. They have cuts to both the outside and inside of the lip.
    • Catching the lower lip between the upper and lower teeth causes the 2 cuts. This tends to happen in children with an overbite.
    • These small cuts do not connect with each other.
    • For bleeding from the lip, use direct pressure. Press the outer lip against the teeth for 10 minutes.
  3. Stop the Bleeding -Tongue:
    • Bites of the tongue rarely need sutures.
    • Even if they gape open a little, tongue cuts usually heal quickly. If the edges come together when the tongue is still, it needs no treatment.
    • For tongue bleeding, try to press on the bleeding site with a sterile gauze. You can also use a piece of clean cloth. Do this for 5 minutes if it's practical.
    • Cuts of the tongue normally tend to ooze a little blood for several hours. This is due to the rich blood supply in the mouth.
    • For constant oozing of blood, can use a moistened tea bag for 10 minutes. (Reason: tannic acid released from the tea bag may stop the oozing).
  4. Cold:  
    • Put a piece of ice or popsicle on the spot that was injured.
    • Do this for 20 minutes.
  5. Pain Medicine:
    • To help with the pain, give acetaminophen (such as Tylenol) or ibuprofen. Use as needed. See Dose Table.
  6. Soft Diet:  
    • Try to get your child to drink adequate fluids.
    • Goal: Keep your child well hydrated.
    • Cold drinks, milk shakes, popsicles, slushes, and sherbet are good choices.
    • Solids. Offer a soft diet. Also avoid foods that need much chewing. Avoid citrus, salty, or spicy foods.
    • Rinse the wound with warm water right away after meals.
  7. What to Expect:
    • Small cuts and scrapes inside the mouth heal up in 3 or 4 days.
    • Infections of mouth injuries are rare.
  8. Call Your Doctor If:
    • Pain becomes severe
    • Mouth looks infected (mainly increasing pain or swelling after 48 hours)
    • Fever occurs
    • Your child becomes worse

And remember, contact your doctor if your child develops any of the "Call Your Doctor" symptoms.

Disclaimer: This information is not intended be a substitute for professional medical advice. It is provided for educational purposes only. You assume full responsibility for how you choose to use this information.


Author and Senior Reviewer: Barton D. Schmitt, M.D.

Last Reviewed: 9/1/2012

Last Revised: 1/14/2013

Content Set: Child Symptom Checker

Copyright 1994-2012 Barton D. Schmitt, M.D.