Read below about thickened skin on the top of the foot, including causes and common questions. Or get a personalized analysis of your thickened skin on the top 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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10 Potential Thickened Skin on the Top of the Foot Causes

Disclaimer: The article does not replace an evaluation by a physician. Information on this page is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes.

  1. 1.Nail Infection (Paronychia)

    Paronychia is an infection of the nail folds, typically caused by Staph. Aureus. Or a fungus.

    Great prognosis. Recovery in the next two weeks

    Rarity:
    Rare
    Top Symptoms:
    spontaneous toe pain, toenail pain, toenail swelling
    Urgency:
    Phone call or in-person visit
  2. 2.Allergic Reaction to Poison Ivy / Oak / Sumac

    Plants of the Toxicodendron genus are found throughout the continental United States, and exposure to these plants is a leading cause of contact dermititis, a medical term used to describe irritation and itching of the skin.

    With treatment, symptoms should resolve from a few days to two weeks.

    Rarity:
    Common
    Top Symptoms:
    rash, itchy rash, red rash, skin changes on arm, stinging or burning rash
    Symptoms that always occur with allergic reaction to poison ivy/oak/sumac:
    itchy rash, rash
    Symptoms that never occur with allergic reaction to poison ivy/oak/sumac:
    fever
    Urgency:
    Self-treatment
  3. 3.Ringworm (Tinea Corporis)

    Tinea Corporis is a common fungal infection of the skin. This rash is sometimes called "ringworm" and results in ring-shaped redness that is often itchy.

    With treatment, the rash should resolve within 2-3 weeks

    Rarity:
    Common
    Top Symptoms:
    dry skin, rash, red rash, itchy rash, curved rash
    Symptoms that never occur with ringworm (tinea corporis):
    groin skin changes, fever, scrotal itch, groin itch, facial skin changes, hand skin changes, genital skin changes
    Urgency:
    Self-treatment
  4. 4.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
  5. 5.Valgus and 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 valgus and bunion:
    bump on outside edge of big toe
    Urgency:
    Primary care doctor

    Thickened Skin on the Top of the Foot Checker

    Take a quiz to find out why you’re having thickened skin on the top of the foot.

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  6. 6.Irritant Contact Dermatitis

    Contact dermatitis is a condition in which the skin becomes red, sore, or inflamed after direct contact with a substance. This condition may occur after repeated and prolonged exposure to substances such as water, detergents (soaps, bleach), solvents (gasoline), acids, powders, dust, and soil. The onset of the skin reaction is usually within 48 hours of contact with the substance.

    1-2 days.

    Rarity:
    Common
    Top Symptoms:
    foot pain, foot redness, thickened skin on the foot, rough skin on the foot
    Symptoms that always occur with irritant contact dermatitis:
    foot redness
    Urgency:
    Self-treatment
  7. 7.Corn

    A corn is a hard, thick layer of skin that develops when the skin experiences lots of friction and pressure. A corn may cause discomfort, but is of no big concern.

    Should go away immediately by trimming excess skin, and will not reappear if shoe inserts are used.

    Rarity:
    Uncommon
    Top Symptoms:
    thickened skin on the foot with visible lines, foot bump with lines through the thickened skin, painful thickened skin, skin thickening
    Symptoms that always occur with corn:
    thickened skin on the foot with visible lines
    Urgency:
    Self-treatment
  8. 8.Raynaud Phenomenon

    Primary Raynaud phenomenon is a disorder of the blood vessels, usually in the fingers and toes, which causes the blood vessels to narrow when feeling cold or stressed. When this happens, blood can't get to the surface of the skin and the affected areas turn white and blue.

    This condition is considered irreversible, but it should not prevent you from living a healthy life.

    Rarity:
    Common
    Top Symptoms:
    distal numbness, cold toe, cold fingers, spontaneous toe pain, spontaneous finger pain
    Urgency:
    Self-treatment
  9. 9.Non - Specific Dermatitis (Skin Inflammation)

    Dermatitis is the inflammation ("-itis") of the skin ("derma" is a layer of the skin). It can be caused by any number of causes, from allergies to infections to autoimmune issues. Dermatitis of Normal Variation (also called, "NOS") means that all of those other causes of your rash have been ruled out. This is very common.

    1-2 days

    Rarity:
    Common
    Top Symptoms:
    red rash, itchy rash, painful rash
    Symptoms that always occur with non-specific dermatitis (skin inflammation):
    red rash
    Urgency:
    Self-treatment
  10. 10.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

Questions Your Doctor May Ask About Thickened Skin on the Top of the Foot

  • Q.Do the skin's natural lines go through the thickened skin?
  • Q.Which of the following describes your physical fitness:
  • Q.Do you run for exercise or sport?
  • Q.Do you have high arches?

If you've answered yes to one or more of these questions, try our thickened skin on the top of the foot symptom checker to find out more.

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Thickened Skin on the Top of the Foot Symptom Checker Statistics

  • People who have experienced thickened skin on the top of the foot have also experienced:

    • 8% Dry Skin
    • 6% Thickened Skin on the Sole of the Foot
    • 6% Pain in the Top of the Foot
  • People who have experienced thickened skin on the top of the foot had symptoms persist for:

    • 75% Over a Month
    • 7% Two Weeks to a Month
    • 6% Less Than a Week
  • People who have experienced thickened skin on the top of the foot were most often matched with:

    • 1% Ringworm (Tinea Corporis)
  • 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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