Cuts on the lips, tongue and the inside of the mouth happen to almost everyone. These areas have the softest, thinnest skin on your body, so the smallest bump or scrape can break the skin. You may have gotten wounds from your teeth cutting the inside of your mouth or bruised your lips from accidentally biting down. Some inner lip wounds can be canker sores or cold sores.
Most inner lip or outer lip wounds are minor. Sometimes injuries can be more serious, such as injury to the face in a fall or car accident. In these instances, you should call your dentist to examine the wound.
It may be scary at first to feel or see a wound in your mouth because they tend to bleed more than a cut on another part of your body. Not only is that skin soft and vulnerable, but it's close to blood vessels, increasing the amount of bleeding. It's important to clean this area with good oral hygiene which will help it heal.
If the cut or wound is on the outside of the mouth like on your lips, you can easily keep it clean with mild soap, warm water and a clean cloth. Apply pressure with the towel to stop or slow any bleeding.
You can easily do inner lip wound care at home. Rinse with salt water or a 1:1 solution of hydrogen peroxide and water multiple times a day, like after meals. Salt water rinses have been shown to help your body heal. Don't swallow these solutions, especially not hydrogen peroxide. Don't worry if putting hydrogen peroxide on the lip or mouth wound makes your wound foam up a little, that's normal when peroxide meets skin. Cleaning the wound with these solutions will ensure there's no dirt or debris in the cut and allow your body to heal itself even faster.
Often small wounds in the mouth can heal quickly with good hygiene and time. The American Dental Association (ADA) says minor sores or irritations like these can heal within a week or two. Follow these three steps from the University of Rochester Medical Center:
If your at-home care is not helping and you're worried about it, you may need to see the doctor.
Here is where it may be scarier than a little cut. Pay attention to your body and if any of the following are true, contact your doctor:
If your mouth wound is around a tooth and the tooth is loose or broken, call your dentist. While you are waiting to see your dentist, the ADA suggests cold compresses and rinses in the meantime for sores and mouth injuries.
If you've developed an injury from sports or other physical activities, a mouth guard could prevent your teeth from scraping your cheeks. Mouth guards provide a solid yet soft surface for your teeth. Your teeth can clench down on it instead of the inside of your mouth! They will also prevent you from biting your lips and accidentally breaking the skin. Mouth guards can be found in stores or customized for you by your dentist.
By keeping your wound clean, you are letting your body focus on healing the wound. If you are still concerned about the pain or swelling, call your doctor or dentist, and they can assess if you need further treatment. Until then, rinse with salt water or a mix of hydrogen peroxide and water, stop yourself from touching it and use cold compresses to help with any swelling or bruising. With these tips, the injury is on its way to healing.
Oral Care Center articles are reviewed by an oral health medical professional. This information is for educational purposes only. This content is not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your dentist, physician or other qualified healthcare provider.
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