A fall, a bump or a bite during a meal can leave a child with a bleeding tongue or lip and a frightening amount of blood. Mouth injuries often look worse than they are, and most can be handled calmly at home. Here is how to stop the bleeding and when to get care.

Why There Seems to Be So Much Blood

Children’s Hospital of Philadelphia explains that the tongue, gums and lips have a rich blood supply, so even small cuts can bleed a lot. Saliva mixing with blood can make it look like even more. Cuts inside the mouth also tend to heal quickly, and tongue bites often close on their own even if they gape slightly.

How It Differs by Age

Toddlers who are learning to walk often catch the tongue or lip on their teeth when they fall. Teething children may bite themselves. School-age children are more likely to injure the mouth during sports, bike or scooter crashes, or by falling with a stick, lollipop or pencil in the mouth, which can cause a deeper cut inside the mouth. In younger children, also check whether any teeth are loose, chipped or knocked out.

First Aid at Home

  • Press clean gauze or a cloth firmly on the cut, wearing gloves if you have them. The AAP advises keeping steady pressure for a full 10 minutes without peeking.
  • If blood soaks through, leave the first layer in place and add more gauze on top. For the tongue, gently pulling it forward while pressing can help.
  • Have your child rinse the inside of the mouth with cool water. For very young children who cannot spit, wipe the area gently instead.
  • A cold pack on the outside of the lip can reduce swelling, and if safe for your child’s age a small ice cube or popsicle to suck on may help.
  • For the next few days, offer soft foods and avoid hot, salty or acidic ones.

Common Misunderstandings

  • Lots of blood does not always mean stitches are needed; many small tongue cuts heal without them.
  • Lifting the gauze to check repeatedly can break up the clot and delay bleeding control.
  • Putting ointments or numbing products in a young child’s mouth carries a risk of swallowing, so ask a clinician first.

When to Go to the Emergency Room or See a Doctor

According to the AAP, a cut may need stitches if it is deep, longer than about 2 cm, keeps bleeding after 15 minutes of steady pressure, or crosses the edge of the lip or the edge of the tongue. Cuts that go through the cheek or lip, animal or human bites, and broken or knocked-out teeth also need medical care. Call 911 or go to the emergency room right away if your child has trouble breathing or swallowing, cannot open or close the mouth, has severe neck pain, or is bleeding heavily. Swelling, pus or fever a few days later can point to infection. It is also reasonable to ask the doctor to check tetanus vaccine records if they are unclear. This information is based on U.S. guidance (AAP and U.S. children’s hospitals); if you live elsewhere, check with a local pediatrician for country-specific recommendations.

This information isn’t a diagnostic tool and doesn’t replace advice from a medical professional.