Read below about spontaneous ankle pain, including causes and common questions. Or get a personalized analysis of your spontaneous ankle pain from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

This symptom can also be referred to as:
Ankle hurts for no reason

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A.I. Health Assistant Causes for Spontaneous Ankle Pain

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced spontaneous ankle pain. This list does not constitute medical advice.

  1. 1.Fibromyalgia

    Fibromyalgia is a disorder that causes widespread pain, tenderness, and fatigue.

    Fibromyalgia is generally a lifelong condition

    Rarity:
    Common
    Top Symptoms:
    fatigue, arthralgias or myalgias, anxiety, depressed mood, headache
    Symptoms that always occur with fibromyalgia:
    arthralgias or myalgias
    Urgency:
    Primary care doctor
  2. 2.Acute Ankle Bone Infection (Osteomyelitis)

    Osteomyelitis of the ankle is a bacterial or fungal infection of the ankle bones, typically caused by Staph Aureus (40-50% of the time). It is difficult to diagnose as the infection can come from a break in the skin at the area or anywhere else in the body that spreads by blood.

    Improvement during a 6-week treatment with antibiotics

    Rarity:
    Rare
    Top Symptoms:
    moderate fever, constant ankle pain, spontaneous ankle pain, warm red ankle swelling, painful surgical site
    Symptoms that always occur with acute ankle bone infection (osteomyelitis):
    spontaneous ankle pain, constant ankle pain
    Urgency:
    Hospital emergency room
  3. 3.Charcot Arthropathy of the Ankle

    Charcot Arthropathy of the foot is a syndrome where patients with numbness of their feet, which can be caused by a variety of underlying conditions such as diabetes, develop weakening of the bones in the foot and ankle. Thus they may have fractures and dislocations of the bones and joints that occur with little trauma.

    Healing may require several months.

    Rarity:
    Rare
    Top Symptoms:
    joint pain, constant ankle swelling, pain in one ankle, swollen ankle, painful ankle swelling
    Symptoms that always occur with charcot arthropathy of the ankle:
    warm red ankle swelling, constant ankle swelling
    Urgency:
    Primary care doctor
  4. 4.Osteochondritis Dissecans

    At joints where bones meet, bones are covered with a layer of cartilage which provides shock absorbance and lubrication. Osteochondritis dissecans is a condition where a piece of cartilage with a thin layer of bone detach from the larger bone, causing pain.

    Conservative treatment should resolve the problem in 3-6 months.

    Rarity:
    Rare
    Top Symptoms:
    pain in one knee, knee stiffness, knee instability, knee pain that gets worse during a run, pop in the knee
    Urgency:
    Primary care doctor

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  5. 5.Sever Disease

    Sever's Disease is inflammation of the heel in children due to overuse (typically due to sports). It's caused by the long bones growing faster than the muscles/tendons, creating tension in the Achilles tendon.

    3-6 weeks

    Rarity:
    Rare
    Top Symptoms:
    heel pain, pain in both feet, spontaneous ankle pain, difficulty moving the ankle
    Symptoms that always occur with sever disease:
    heel pain
    Symptoms that never occur with sever disease:
    cut on the foot
    Urgency:
    Self-treatment
  6. 6.Chronic Ankle Bone Infection (Osteomyelitis)

    Osteomyelitis of the ankle is a bacterial or fungal infection of the ankle bones, typically caused by Staph Aureus (40-50% of the time). It is difficult to diagnose as the infection can come from a break in the skin at the area or anywhere else in the body that spreads by blood.

    Improvement during a 6-week treatment with antibiotics

    Rarity:
    Rare
    Top Symptoms:
    spontaneous ankle pain, moderate fever, warm red ankle swelling, painful surgical site
    Symptoms that always occur with chronic ankle bone infection (osteomyelitis):
    spontaneous ankle pain
    Urgency:
    Hospital emergency room
  7. 7.Septic Arthritis

    Septic arthritis is an intensely painful joint infection.

    12-14 days with treatment

    Rarity:
    Rare
    Top Symptoms:
    fever, spontaneous shoulder pain, chills, knee pain, joint pain
    Urgency:
    Hospital emergency room
  8. 8.Posterior Tibialis Tendinopathy

    Posterior Tibialis Tendinopathy is the dysfunction of a tendon (muscles to bones) in the back of the foot, which can lead to having flat feet. It's unclear why exactly it happens, but might be related to poor blood flow and mechanical issues specific to the person.

    Progressive and relapsing, needing several attempts to fix the problem

    Rarity:
    Ultra rare
    Top Symptoms:
    swollen foot, pain in one foot, limping, pain in one ankle, spontaneous ankle pain
    Symptoms that never occur with posterior tibialis tendinopathy:
    recent cutting accident
    Urgency:
    Primary care doctor
  9. 9.Synovial Chondromatosis

    Synovial chondromatosis is a disease affecting the synovium, which is a thin flexible membrane around a joint. It can often be confused with tendinitis and/or arthritis.

    Surgery is the only effective treatment at this time, but this condition is considered benign, and spreading to other tissue is very rare.

    Rarity:
    Ultra rare
    Top Symptoms:
    joint swelling, pain in one knee, pain in one hip, swollen knee, spontaneous knee pain
    Symptoms that always occur with synovial chondromatosis:
    joint swelling
    Symptoms that never occur with synovial chondromatosis:
    fever, night sweats, unintentional weight loss, warm red ankle swelling, warm red knee swelling, warm and red elbow swelling
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Spontaneous Ankle Pain

  • Q.Do you have high blood pressure?
  • Q.Have you ever been diagnosed with diabetes?
  • Q.Do you have multiple joints that are stiff?
  • Q.Is your ankle able to move in all directions like it used to?

If you've answered yes to one or more of these questions, try our spontaneous ankle pain symptom checker to find out more.

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Spontaneous Ankle Pain Symptom Checker Statistics

  • People who have experienced spontaneous ankle pain have also experienced:

    • 20% Swollen Ankle
    • 10% Fatigue
    • 10% Swelling of One Foot
  • People who have experienced spontaneous ankle pain had symptoms persist for:

    • 33% Over a Month
    • 26% Less Than a Week
    • 21% Less Than a Day
  • People who have experienced spontaneous ankle pain were most often matched with:

    • 50% Acute Ankle Bone Infection (Osteomyelitis)
    • 25% Fibromyalgia
    • 25% Charcot Arthropathy of the Ankle
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

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