What is a triangular bandage and how is it used in first aid?

A triangular bandage is one of the most versatile items in a first aid kit. Made from cotton or calico and shaped as a large right-angled triangle, it can be used in multiple ways to support, immobilise, or secure injured body parts.

One of the most common uses of a triangular bandage is as a sling, which supports an arm or shoulder injury and reduces strain on the injured area. It can also be folded into a broad or narrow bandage to secure splints, control bleeding, or immobilise limbs in combination with other dressings.

When applying a triangular bandage, ensure it is firm but not too tight, as circulation to the affected limb must be maintained. Always check fingers or toes for colour, warmth, and movement after securing a bandage to ensure blood flow is not restricted.

Because of its flexibility, the triangular bandage is considered an essential first aid item and is included in most workplace, home, and vehicle first aid kits. Its ability to quickly immobilise injuries makes it especially valuable in emergency situations before professional help arrives.

Use a triangular bandage as a sling or to immobilise injured limbs.

How to use a triangular bandage:

  • Fold or leave the bandage open depending on the required use.

  • Use as a sling to support an arm or shoulder injury.

  • Use to immobilise a limb by tying above and below an injury.

  • Ensure knots are secure but not tight enough to restrict circulation.

  • Check the casualty’s comfort and circulation regularly.

Takeaway to Remember

A triangular bandage is a versatile first aid bandage shaped like a triangle. It is commonly used as a sling or to immobilise and support injured limbs.