Read below about swelling of the sole of the foot, including causes and common questions. Or get a personalized analysis of your swelling of the sole of the foot 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.

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A.I. Health Assistant Causes for Swelling of the Sole of the Foot

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

  1. 1.Plantar Fasciitis

    Plantar fasciitis is a condition where the thick band of tissue that runs across the bottom of the foot becomes inflamed. This is a common problem in runners, people who are overweight, and those who wear shoes with inadequate support. When the thick band of tissue (fascia) becomes inflamed, it can cause heel pain.

    Pain can last weeks to months.

    Rarity:
    Common
    Top Symptoms:
    pain in the sole of the foot, sharp, stabbing foot pain, pain in one foot, severe foot pain, heel pain
    Symptoms that always occur with plantar fasciitis:
    pain in the sole of the foot, sharp, stabbing foot pain
    Urgency:
    Self-treatment
  2. 2.Morton Neuroma

    Morton neuroma is nerve damage between the 2nd and 3rd toes, often found in women who run or wear tight high heels.

    Almost all patients do well with conservative (non-surgical) treatment

    Rarity:
    Rare
    Top Symptoms:
    foot numbness, pain in the sole of the foot, pain when touching the foot, pain in both feet, foot injury
    Urgency:
    Self-treatment
  3. 3.Foot Sprain

    The bones of the ankle and foot are held together by ligaments, which are bands of tough tissue. A sprain is a type of injury where one or more of the ligaments is stretched too far, causing tiny fibers in the ligaments to tear. In most cases, the ligament does not tear completely.

    An uncomplicated foot sprain should improve in 3-6 weeks.

    Rarity:
    Common
    Top Symptoms:
    pain in one foot, foot injury, limping, warm red foot swelling, swelling of one foot
    Symptoms that always occur with foot sprain:
    pain in one foot, foot injury
    Symptoms that never occur with foot sprain:
    recent cutting accident
    Urgency:
    Phone call or in-person visit
  4. 4.Rheumatoid Arthritis

    Rheumatoid arthritis (RA) is a form of arthritis that causes pain, swelling, stiffness and loss of function in your joints. It can affect any joint but is common in the wrist and fingers. RA is an autoimmune disorder, meaning that it is caused by the immune system incorrectly attacking the joints when it shouldn't.

    RA is a chronic disease which requires lifelong control.

    Rarity:
    Rare
    Top Symptoms:
    fatigue, depressed mood, joint pain, muscle aches, daytime sleepiness
    Urgency:
    Primary care doctor

    Swelling of the Sole of the Foot Checker

    Take a quiz to find out why you’re having swelling of the sole of the foot.

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  5. 5.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
  6. 6.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
  7. 7.Stress Fracture of the Foot (Marching Fracture)

    A "March" stress fracture of the foot is named because it's sometimes linked to soldiers marching for a long time. This foot fracture happens because of prolonged stress or weight-bearing.

    6-12 weeks with treatment

    Rarity:
    Rare
    Top Symptoms:
    constant foot pain, foot pain from overuse, pain in one foot, pain when touching the foot, pain in the top of the foot
    Symptoms that always occur with stress fracture of the foot (marching fracture):
    foot pain from overuse, constant foot pain
    Urgency:
    Primary care doctor
  8. 8.Bunion

    A bunion is a deformity of the joint at the base of the big toe. Certain footwear styles can worsen bunions.

    Generally, better footwear & orthotics can slow the bunion's progression and alleviate symptoms.

    Rarity:
    Common
    Top Symptoms:
    bump on outside edge of big toe, big toe pain, toe pain that gets worse when wearing closed-toe shoes, foot ulcer, pain at the base of the toe
    Symptoms that always occur with bunion:
    bump on outside edge of big toe
    Urgency:
    Primary care doctor
  9. 9.Familial Hypercholesterolemia

    Familial hypercholesterolemia is a genetic disorder that causes LDL ("bad") cholesterol levels to be very high. The condition begins at birth and can cause heart attacks at an early age.

    Chronic but controllable

    Rarity:
    Common
    Top Symptoms:
    swollen achilles, achilles tendon pain
    Symptoms that never occur with familial hypercholesterolemia:
    achilles tendon pain
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Swelling of the Sole of the Foot

  • Q.Where exactly is your foot swelling?
  • Q.What is your body mass?
  • Q.Have you ever been diagnosed with diabetes?
  • Q.Do you have a history of high cholesterol?

If you've answered yes to one or more of these questions, try our swelling of the sole of the foot symptom checker to find out more.

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Swelling of the Sole of the Foot Symptom Checker Statistics

  • People who have experienced swelling of the sole of the foot have also experienced:

    • 22% Pain in the Sole of the Foot
    • 4% Foot Pain
    • 3% Tingling Foot
  • People who have experienced swelling of the sole of the foot had symptoms persist for:

    • 31% Less Than a Week
    • 26% Less Than a Day
    • 22% Over a Month
  • People who have experienced swelling of the sole of the foot were most often matched with:

    • 50% Foot Sprain
    • 25% Plantar Fasciitis
    • 25% Morton Neuroma
  • 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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