RICE

Muscles are made up of bundles of muscle fibers and blood vessels. Within each bundle, the individual muscle fibers—or muscle cells—do the work of contraction and movement. When a muscle fiber tear occurs, some of these fibers are damaged or completely torn.

The severity of the injury can vary. In mild cases, only a few fibers are affected. In more serious cases, such as a complete muscle tear, all the fibers in the muscle may rupture. If nearby blood vessels are also damaged, bruising is common due to internal bleeding.

In some cases, you can even feel the site of the tear. Because muscle fibers are stretched like elastic bands, a tear causes the ends of the fibers to pull back—leaving behind a small gap or indentation that may feel like a “hole” in the muscle.

What should you do if a muscle fiber tears? The best immediate response is to follow the RICE method, a well-established first aid approach for acute muscle injuries:

• Rest: Stop exercising immediately and sit or lie down to avoid further strain.
• Ice: Apply a cooling bag or ice pack to the injured area to reduce swelling and pain.
• Compression: Gently bandage the affected area to provide support and minimize swelling.
• Elevate: Raise the injured limb—such as an arm or leg—above heart level to reduce blood flow and limit swelling.

After administering first aid, it’s essential to consult a doctor. They may recommend additional treatments, such as supportive kinesiology tape to stabilize the muscle and promote healing. However, it’s important to step away from all sports activities for now—a torn muscle fiber can take up to six weeks to fully heal, depending on the severity.