Ankle Injury
Damage to the bones, ligaments, or tendons of the ankle
Quick Facts
- Type: Musculoskeletal injury
- Most common: Sprain (stretched or torn ligaments)
- Usual cause: Twisting, rolling, or impact
- First aid: Rest, ice, compression, elevation
Overview
An ankle injury is any damage to the structures that make up the ankle, including the bones, the ligaments that connect them, the tendons, and the surrounding soft tissue. The ankle is a complex, weight-bearing joint, and injuries to it are among the most common reasons people seek care for a musculoskeletal problem.
Ankle injuries range widely in severity. The most common is a sprain, where the ligaments are stretched or torn, usually when the ankle rolls inward. More forceful injuries can cause a fracture (a broken bone) or damage to the tendons. Most mild and moderate ankle injuries heal well with simple home care, but more serious ones may need imaging, immobilization, or, occasionally, surgery. Knowing the warning signs of a more serious injury helps you decide when to seek medical care.
Symptoms
Symptoms depend on the type and severity of the injury but commonly include:
- Pain, especially when putting weight on the ankle or moving it
- Swelling around the joint
- Bruising or discoloration
- Tenderness when touching the ankle
- Stiffness and reduced range of motion
- A feeling of instability or the ankle giving way
A popping sound at the time of injury, severe pain, an inability to bear any weight, an obvious deformity, or numbness and coldness in the foot suggest a more serious injury such as a fracture or significant ligament tear, and these warrant prompt medical evaluation.
Causes
Ankle injuries usually happen suddenly, often during everyday activities or sport. Common causes include:
- Rolling or twisting: The ankle turning inward or outward beyond its normal range, the typical cause of a sprain.
- Falls and missteps: Tripping, stepping on an uneven surface, or landing awkwardly.
- Impact: A direct blow or heavy load on the ankle, which can cause a fracture.
- Sports: Activities involving jumping, quick changes of direction, or contact.
- Overuse: Repetitive stress that strains tendons over time.
Wearing unsupportive footwear and moving on uneven ground increase the chance of an injury.
Risk Factors
- Participation in sports involving jumping, running, or rapid direction changes
- A previous ankle injury, which can leave the joint weaker or less stable
- Poor balance or muscle weakness around the ankle
- Unsupportive or worn-out footwear, or high heels
- Walking or running on uneven surfaces
- Being overweight, which adds load to the joint
Diagnosis
A doctor evaluates an ankle injury by examining the joint and, when needed, ordering imaging:
- Physical examination: Checking for swelling, tenderness, range of motion, stability, and whether you can bear weight
- X-ray: To look for a fracture, often guided by specific findings such as bony tenderness or inability to bear weight
- MRI or ultrasound: Used in some cases to assess ligaments, tendons, and soft tissue in more detail
Treatment
Treatment depends on the type and severity of the injury. Many sprains and minor injuries respond well to simple home care.
- RICE: Rest, ice, compression with a bandage, and elevation of the ankle in the first days to reduce pain and swelling.
- Pain relief: Over-the-counter pain relievers as directed.
- Support and gradual movement: A brace or supportive footwear, followed by gentle movement and rehabilitation exercises to restore strength and balance.
- Immobilization: A splint, boot, or cast for fractures or severe sprains.
- Surgery: Reserved for serious fractures or completely torn ligaments that do not heal otherwise.
Physical therapy can help restore strength, flexibility, and stability and reduce the risk of future injury. Healing time ranges from a few days for a mild sprain to several weeks or more for a fracture.
Prevention
- Wear supportive, well-fitting footwear suited to your activity
- Warm up and stretch before exercise or sport
- Strengthen the muscles around the ankle and practice balance exercises
- Use a brace or supportive taping if you have a history of ankle injuries
- Watch your footing on uneven or slippery surfaces
- Increase the intensity of activities gradually
When to See a Doctor
See a doctor if you cannot bear weight on the ankle, if pain and swelling are severe or do not improve over a few days, or if the ankle feels unstable. Seek prompt or emergency care if the ankle looks deformed, you heard a pop with immediate severe pain, the joint is numb, cold, or pale, or the skin is broken over a possible fracture, as these suggest a serious injury that needs urgent treatment.
Frequently Asked Questions
How can I tell if my ankle is sprained or broken?
A sprain involves stretched or torn ligaments, while a break is a fractured bone. Severe pain, inability to bear any weight, an obvious deformity, a popping sound, or bony tenderness suggest a possible fracture. Because the two can feel similar, an X-ray is often the only way to be sure.
What should I do right after an ankle injury?
Use the RICE approach: rest the ankle, apply ice wrapped in a cloth, use a compression bandage, and elevate the foot above heart level. Over-the-counter pain relievers can help. Avoid putting weight on it until you know how serious the injury is, and seek care if symptoms are severe.
How long does an ankle injury take to heal?
A mild sprain may heal in a few days to a couple of weeks, while a moderate sprain can take several weeks. Fractures and severe ligament tears often take six weeks or longer and may need a boot or cast. Rehabilitation exercises help restore full function.
When should I see a doctor for an ankle injury?
See a doctor if you cannot bear weight, if pain and swelling are severe or persistent, or if the ankle feels unstable. Seek urgent care for an obvious deformity, a pop with immediate severe pain, or a foot that is numb, cold, or pale, which suggest a serious injury.
How can I prevent ankle injuries?
Wear supportive footwear, warm up before activity, and strengthen the muscles around the ankle with balance and strengthening exercises. If you have had previous ankle injuries, a brace or supportive taping during sport can help, and watching your footing on uneven ground reduces risk.
References
- American Academy of Orthopaedic Surgeons (OrthoInfo). Sprained Ankle.
- Mayo Clinic. Sprained ankle — Symptoms and causes.
- MedlinePlus, U.S. National Library of Medicine. Ankle injuries and disorders.
- Cleveland Clinic. Ankle Sprain.