What are potential reasons for experiencing weakness in the ankle?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Ankle weakness is often caused by nerve-related conditions. Common causes include Charcot-Marie-Tooth disease, a hereditary nerve disorder, or lower back problems such as a pinched nerve or herniated disc that disrupts the nerve signals controlling ankle movement. Muscle weakness, foot drop, or difficulty lifting the foot may signal an underlying neurological issue that needs evaluation.

Because ankle weakness can stem from many different sources—ranging from nerve compression in the spine to inherited neuropathies—identifying the root cause early is key to getting the right treatment and preventing further complications. A quick, free, and confidential online symptom check can help you understand what may be behind your symptoms and guide you on the most appropriate next steps, whether that's self-care or seeing a specialist.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Learn causes of ankle weakness Discover if ankle weakness needs care Find out what’s causing ankle weakness See OTC options for ankle weakness Find an ankle weakness specialist Understand home remedies for ankle weakness Check if ankle weakness needs urgent care

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Explanation

Weakness in the ankle can happen for different reasons, often linked to nerve problems. One cause can be neurologic disorders that affect the foot and ankle. These disorders may interfere with the nerves that help the ankle move and stay strong.

Another possible reason is Charcot-Marie-Tooth disease, a condition that affects the nerves in the legs and feet. This disease can make the muscles in the ankle weaker and harder to control.

Lastly, problems in the lower back, like issues with the spine, can also lead to ankle weakness. This happens because the nerves from the lower back travel down to the ankle. If these nerves are pinched or damaged, it can make the ankle weak.

If you are experiencing weakness in your ankle, you can use our free symptom checker to help identify possible causes and determine whether you should seek medical attention from a healthcare professional.

(References)

Yorns WR Jr. (2022). Neurologic Disorders Affecting the Foot and Ankle. Clinics in podiatric medicine and surgery, 34809793.
Holmes JR, & Hansen ST Jr. (1993). Foot and ankle manifestations of Charcot-Marie-Tooth .... Foot & ankle, 8253442.
Ghahreman A, Ferch RD, Rao P, Chandran N, & Shadbolt B. (2009). Recovery of ankle dorsiflexion weakness following lumbar .... Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia, 19428255.

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