St John Ambulance
Donate

Cuts and grazes

Dr Lynn Thomas, OStJ, BSc, MB.BS, MA, FRCPClinically reviewed: 28/04/2025

Cuts and grazes are common injuries that can usually be treated at home.

What is a cut?

A cut is when the skin is fully broken.

What is a graze?

A graze is when only the top layers of skin are scraped off.

What to do

  1. 1

    Clean the wound by rinsing it under running water or using sterile wipes.

  2. 2

    Do not rub. Pat the wound dry using a gauze swab and cover it with sterile gauze. If you don’t have these, use a clean, non-fluffy cloth, like a tea towel.

  3. 3

    For a cut, raise and support the injured part above the level of the heart. Avoid touching the wound.

  4. 4

    Clean around the wound with soap and water. Make sure you are wiping away from the wound, using a clean swab for each stroke. Pat dry. Remove the cloth or gauze covering the wound and apply a sterile dressing or a large plaster.

  5. 5

    Seek medical help if:

    • a wound won’t stop bleeding

    • a foreign object is embedded in the wound – like a splinter of wood or glass

    • the wound is from a human or animal bite

    • you think the wound might be infected

    • you are unsure whether the casualty has been immunised against tetanus.

Related first aid advice

If you're looking for more than just advice