When Your Ankle Hurts Without a Clear Cause

Most people associate ankle pain with a specific event — a sprain, a fall, or a collision. But a significant proportion of patients come to our office with ankle pain that developed gradually without any identifiable injury. This type of ankle pain can be puzzling, but it usually has a clear underlying cause once properly evaluated. At Balance Foot & Ankle in Howell and Bloomfield Township, we systematically work through the differential diagnosis to find the source.

1. Posterior Tibial Tendon Dysfunction (PTTD)

PTTD is one of the most common causes of atraumatic medial ankle pain in adults. The posterior tibial tendon gradually weakens, causing pain along the inner ankle and a progressive collapsing of the arch. Patients often notice their foot has been “turning out” more than before. Without treatment, the deformity progresses.

2. Peroneal Tendinopathy

Chronic overuse of the peroneal tendons causes lateral ankle pain, particularly in runners and those with high arches. Pain is localized behind the lateral malleolus and worsens with activity. It may develop insidiously without any acute injury.

3. Ankle Osteoarthritis

Post-traumatic or primary osteoarthritis of the tibiotalar joint causes progressive ankle pain, stiffness, and reduced motion. Patients often don’t connect it to an old ankle sprain from 20 years ago. X-rays show joint space narrowing and osteophytes.

4. Subtalar Arthritis

Arthritis of the subtalar joint (between the talus and calcaneus) causes deep, aching hindfoot pain that is often worse on uneven surfaces. It’s frequently mislocalized as ankle pain. Subtalar motion is restricted and painful.

5. Tarsal Tunnel Syndrome

Compression of the posterior tibial nerve creates burning, tingling, and numbness on the inner ankle and sole of the foot. Symptoms may mimic ankle pain but have a neurological quality — electric, burning, or tingling rather than purely mechanical.

6. Sinus Tarsi Syndrome

The sinus tarsi is a canal between the talus and calcaneus. Chronic inflammation or scarring here — often from a previous ankle sprain that didn’t fully heal — causes lateral ankle and sinus tarsi pain with activity. The area is tender to direct palpation.

7. Ankle Impingement Syndrome

Anterior or posterior ankle impingement occurs when soft tissue or bony prominences are pinched in the ankle joint during motion. Anterior impingement (common in soccer players) causes pain with forced dorsiflexion; posterior impingement (common in ballet dancers) causes pain with plantarflexion.

8. Inflammatory Arthritis

Rheumatoid arthritis, psoriatic arthritis, and reactive arthritis can all cause ankle joint inflammation without trauma. The ankle is warm, swollen, and painful, often with morning stiffness lasting more than an hour. Systemic symptoms (fatigue, other joint involvement) may be present.

9. Gout

While classic gout strikes the big toe joint, the ankle is the second most commonly affected joint. Acute gout attacks are intensely painful, often begin at night, and involve dramatic swelling, redness, and warmth. Blood uric acid levels are elevated during attacks.

Getting the Right Diagnosis

The specific location, quality, timing, and aggravating factors of ankle pain provide important diagnostic clues. Physical examination, X-rays, and sometimes MRI or laboratory testing help narrow the diagnosis. If your ankle hurts without a clear injury, contact Balance Foot & Ankle for a thorough evaluation.

Foot or Ankle Pain? We Can Help.

Balance Foot & Ankle — Howell & Bloomfield Township, MI

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📞 (810) 206-1402

Dr. Tom Biernacki, DPM

Dr. Tom Biernacki, DPM is a double board-certified podiatrist and foot & ankle surgeon at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has reached over one million views.