Soft Tissue Injury

A soft tissue injury is damage to the lips, cheeks, tongue, gums, or the inside of the mouth, rather than to a tooth itself. It can follow a fall, a sports impact, biting the cheek during eating, or a sharp tooth edge. The mouth has a rich blood supply, so even a small cut can bleed noticeably, and the area can become sore and swollen.

What Soft Tissue Injury involves

Care focuses on stopping bleeding, checking for deeper cuts, and protecting the area while it heals. A dentist or urgent care provider will check whether a tooth, a filling edge, or a broken tooth is causing repeated injury, and whether stitches or another treatment are needed for a deeper cut.

Signs of Soft Tissue Injury

• Bleeding from the lip, cheek, tongue, or gum
• A cut, bruise, or swelling inside the mouth
• Pain when eating, drinking, or talking
• A sharp tooth edge that keeps catching the same spot

What to do right away for Soft Tissue Injury

• Rinse gently with clean water and apply clean, damp gauze with gentle pressure
• Avoid spicy, acidic, or very hot foods while the area is sore
• Do not pull at loose tissue or try to trim it yourself
• Call for help if bleeding continues, the cut is deep, or swelling spreads

How a dentist may help with Soft Tissue Injury

• Find the source of the injury and check its depth
• Help bleeding stop and check for damage to teeth or bone
• Treat a sharp tooth edge or broken filling that is causing the injury
• Give guidance on rinsing, eating, and follow-up

When to seek urgent care for Soft Tissue Injury

Seek urgent care right away if bleeding is heavy, the tongue is badly injured, breathing or swallowing is affected, or the injury followed a serious accident.

General information on this page is not medical advice. A dentist who examines you can give advice for your situation.

Related emergency dental help

• Oral Bleeding
• Jaw Injury
• Dentures

Emergency Dental Services — back to the full list. Contact Emergency Dentist for general enquiries, or call for urgent help.

Frequently asked questions about Soft Tissue Injury

Why does a small mouth cut bleed so much?

The mouth has many small blood vessels, so a small cut can bleed more than expected. Steady gentle pressure usually helps it slow.

Should I use mouthwash on a cut?

Gentle rinsing with clean water is usually enough at first. Avoid strong rinses that sting, and follow the guidance given for your injury.

When does a mouth cut need stitches?

Deep cuts, cuts that keep opening, or cuts on the tongue or lip may need professional care. A dentist or urgent care provider can judge.