The man covers his mouth because it is bleeding.

Mouth Injury Treatment: How to Treat A Cut In Your Mouth

What to know about a mouth injury treatment? A cut or a wound in your mouth can be caused by numerous different things. Often, children get a minor injury to the lips and mouth while playing, climbing, or partaking in sports events. Luckily, most of these damages can be managed at home with simple first-aid treatment. However, if you have an oral injury that affects your teeth and gums, check out this special gum surgery.