What is chronic ankle instability?
In cases of chronic ankle instability, the ligaments that support the ankle may become stretched or torn, leading to an ongoing vulnerability, and causing issues with balance and stability. This leads to ankle sprains where you roll onto the outside of your ankle, causing pain and further damage.
What causes chronic ankle instability?
Chronic ankle instability is commonly caused by repeated ankle sprains that have further stretched or torn the ligaments responsible for supporting the ankle. The inflammation that can occur following ankle sprains may also contribute to the development of ankle instability due to the effect that a prolonged inflammatory process can have on tissues.
What are symptoms of chronic ankle instability?
Chronic ankle instability may present in the following ways:
- Recurring ankle sprains
- Feeling of instability in the ankle joint
- Occurring following an ankle sprain not properly treated or rehabilitated
- Ankle sprains
- Ankle swelling
- Persistent feeling of ankle giving way
How is chronic ankle instability diagnosed?
Your healthcare provider will be able to diagnose chronic lateral ankle instability with a physical evaluation. The provider may request history on any past ankle injuries and bouts of instability, followed by an examination of your ankle, checking for tenderness, swelling and instability.
X-rays or other types of imaging may be ordered for further evaluation and a more in-depth look at the affected area. From there, your doctor will come up with a treatment plan that best suits your needs.
What are treatment options for chronic ankle instability?
Treatment for chronic ankle instability typically involves physical therapy to strengthen the weakened muscles that support the ankle, as well as bracing the ankle with tape to provide additional support.
In some circumstances, chronic ankle instability surgery may be required to repair or reconstruct damaged or weakened ligaments around the ankle.
Medically Reviewed April 29, 2026