Read below about hard knee lump, including causes and common questions. Or get a personalized analysis of your hard knee lump 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 Hard Knee Lump

Updated on Aug. 29, 2018

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

  1. 1.Dermatofibroma

    Dermatofibroma (superficial benign fibrous histiocytoma) is a common cutaneous nodule of unknown etiology that occurs more often in women. Dermatofibroma frequently develops on the extremities (mostly the lower legs) and is usually asymptomatic, although pruritus and tenderness can be present

    Resolves with treatment

    Rarity:
    Rare
    Top Symptoms:
    small facial lump, pink or red facial bump, face itch, skin-colored facial bump, painful facial bump
    Urgency:
    Wait and watch
  2. 2.Skin Cyst

    An epidermoid cyst is a closed sac under the skin filled with a cheese-like or oily material. It is caused by trauma or surgery.

    Resolves with treatment

    Rarity:
    Common
    Top Symptoms:
    skin-colored armpit bump, marble sized armpit lump, small armpit lump
    Symptoms that always occur with skin cyst:
    skin-colored armpit bump
    Urgency:
    Wait and watch
  3. 3.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

    Hard Knee Lump Checker

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  4. 4.Wart

    Warts are non-serious skin growths caused by a virus that infects the top layer of the skin. They are contagious. Thus, warts on the face are often spread there by the hands, and vice versa.

    78% go away in 2 years

    Rarity:
    Common
    Top Symptoms:
    small facial lump, painless facial bump, skin-colored facial bump, scaly facial bump
    Symptoms that never occur with wart:
    headache
    Urgency:
    Self-treatment
  5. 5.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
  6. 6.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:
    Ultra 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 Hard Knee Lump

  • Q.What color is the bump?
  • Q.Do you feel pain when you touch the bump?
  • Q.Is your bump getting bigger?
  • Q.Is there anything on the surface of the bump?

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

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Hard Knee Lump Symptom Checker Statistics

  • People who have experienced hard knee lump have also experienced:

    • 29% Knee Pain
    • 5% Swollen Knee
    • 3% Pain in the Outside of the Knee
  • People who have experienced hard knee lump had symptoms persist for:

    • 39% Over a Month
    • 25% Less Than a Week
    • 15% Less Than a Day
  • People who have experienced hard knee lump were most often matched with:

    • 100% Synovial Chondromatosis
  • 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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