How to Tell the Difference Between a Sprained and Broken Ankle

Ankle injuries are common, often resulting from twists or falls. Distinguishing between a sprain and a fracture can be challenging without medical assessment. While both cause pain and swelling, their underlying nature and treatment differ significantly. Understanding key symptoms can help determine when professional medical attention is necessary.

Understanding Ankle Injuries

An ankle sprain occurs when the ligaments, tough bands connecting bones, are stretched or torn. These injuries range from mild to severe, depending on the extent of ligament damage. A broken ankle, or ankle fracture, involves a crack or break in one or more of the bones that make up the ankle joint. This can include the tibia, fibula, or talus bones.

Key Differences in Symptoms

While symptoms overlap, certain signs can suggest a fracture over a sprain.

Pain and Tenderness

Pain from a sprain often localizes around the injured ligaments, typically on the outside of the ankle. A fracture may cause more intense, widespread pain, particularly directly over the bone. Tenderness directly on a bone is a strong indicator of a break.

Swelling and Bruising

Both injuries cause swelling and bruising. However, a fracture often leads to more immediate and severe swelling. Bruising may also appear more rapidly and extensively with a broken ankle.

Ability to Bear Weight

The ability to put weight on the injured ankle is a crucial indicator. While a severe sprain can make weight-bearing difficult, complete inability to bear any weight immediately after the injury often points to a fracture. If you cannot take four steps without severe pain, seek medical attention.

Deformity and Sound

Visible deformity, such as an unnatural angle or bone protruding, is a clear sign of a fracture. Hearing a distinct “pop” or “snap” at the time of injury can occur with both severe sprains and fractures. However, it is more commonly associated with a fracture or a complete ligament tear.

When to Seek Medical Attention

Accurate diagnosis requires a medical professional. A doctor will perform a physical examination and may order imaging tests. X-rays are essential for identifying fractures, while an MRI might be used to assess ligament damage in severe sprains. Early and accurate diagnosis ensures proper treatment and recovery.

Treatment Approaches

Initial care for both injuries often involves RICE: Rest, Ice, Compression, and Elevation. For sprains, treatment focuses on pain management, reducing swelling, and gradual rehabilitation to restore strength and range of motion. Fractures typically require immobilization with a cast or boot to allow the bone to heal. Surgery may be necessary for severe fractures.