Read below about swelling of one thigh, including causes and common questions. Or get a personalized analysis of your swelling of one thigh 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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4 Potential Swelling of One Thigh 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.Thigh Bruise

    A bruise is the damage of the blood vessels that return blood to the heart (the capillaries and veins), which causes pooling of the blood. This explains the blue/purple color of most bruises.

    Bruises will begin to heal over the course of a week

    Rarity:
    Rare
    Top Symptoms:
    pain in one thigh, upper leg injury, thigh pain from an injury, thigh bruise, swelling of one thigh
    Symptoms that always occur with thigh bruise:
    upper leg injury, thigh pain from an injury
    Urgency:
    Self-treatment
  2. 2.Deep Vein Thrombosis

    Deep vein thrombosis (DVT) is a blood clot that forms in a vein deep in the body. Most deep vein clots occur in the lower leg or thigh.

    Curable with medication or surgery but may recur.

    Rarity:
    Uncommon
    Top Symptoms:
    fever, thigh pain, upper leg swelling, calf pain, butt pain
    Urgency:
    Hospital emergency room

    Swelling of One Thigh Checker

    Take a quiz to find out why you’re having swelling of one thigh.

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  3. 3.Compartment Syndrome

    Compartment syndrome is a serious condition that involves increased pressure in a muscle compartment. It can lead to muscle and nerve damage and problems with blood flow.

    Prognosis is highly variable after surgery and depends on how rapidly you are treated.

    Rarity:
    Rare
    Top Symptoms:
    arm numbness, hand numbness, foot numbness, pain in one leg, thigh numbness
    Urgency:
    Hospital emergency room
  4. 4.Benign Bony Growth (Osteochondroma)

    An osteochondroma is a non-cancerous growth that usually develops during childhood or adolescence. It is a benign tumor that forms on the surface of a bone near the growth plate.

    Will remain for life if not treated with surgery, but is benign and is not expected to affect life expectancy.

    Rarity:
    Rare
    Top Symptoms:
    lower leg bump, upper leg bump, numbness in one thigh, painful thigh lump, hip bump
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Swelling of One Thigh

  • Q.Any fever today or during the last week?
  • Q.Do you have a rash?
  • Q.Have you ever been diagnosed with diabetes?
  • Q.Did you injure your thigh?

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

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Swelling of One Thigh Symptom Checker Statistics

  • People who have experienced swelling of one thigh have also experienced:

    • 12% Pain in One Thigh
    • 6% Thigh Pain
    • 3% Lower Back Pain
  • People who have experienced swelling of one thigh had symptoms persist for:

    • 30% Less Than a Week
    • 29% Over a Month
    • 22% Less Than a Day
  • People who have experienced swelling of one thigh were most often matched with:

    • 21% Compartment Syndrome
    • 20% Deep Vein Thrombosis
    • 2% Thigh Bruise
  • 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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