What Is a Corked Muscle?

A corked muscle (also called a muscle contusion) is a common soft tissue injury. It happens when a direct blow or impact causes muscle fibres to compress against the bone, leading to bruising, swelling, and pain. While often seen in contact sports like AFL, rugby, or soccer, anyone can suffer a corked injury.

Think of it like a deep bruise inside the muscle.

Symptoms of a Corked Muscle

A corked muscle can feel mild at first. But left untreated, it can worsen quickly.

Common signs include:

• Deep, localised pain at the site of impact

• Swelling or muscle tightness

• Visible bruising or discolouration

• Difficulty moving the affected muscle

• Weakness or a ‘dead leg’ feeling (in thigh injuries)

💡 Note: Corked muscles are most common in large muscle groups like the quadriceps, hamstrings, or biceps.

What Causes a Corked Muscle?

Most corked muscle injuries are caused by:

• A direct hit from another player (e.g. knee to the thigh)

• Contact with hard surfaces (like the ground or equipment)

• Falls or accidental collisions

The muscle absorbs the force of the impact, leading to internal bleeding within the muscle tissue.

How to Treat a Corked Muscle

Right after the injury, follow RICER for the first 48 hours:

• Rest – Stop activity to avoid further damage.

• Ice – Apply cold packs for 20 minutes every 2 hours.

• Compression – Use an elastic bandage to reduce swelling.

• Elevation – Raise the limb above heart level.

• Referral – See a physiotherapist for proper assessment.

🚫 Avoid HARM in the first 48 hours:

• Heat

• Alcohol

• Running

• Massage

These can increase bleeding and slow recovery.