Read below about black or brown upper leg bump, including causes and common questions. Or get a personalized analysis of your black or brown upper leg bump 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 Black or Brown Upper Leg Bump

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced black or brown upper leg bump. This list does not constitute medical advice.

  1. 1.Upper Leg Mole

    Moles are growths on the skin. They happen when pigment cells in the skin, called melanocytes, grow in clusters.

    Indefinite

    Rarity:
    Uncommon
    Top Symptoms:
    unchanged upper leg bump, black or brown upper leg bump, bump's smooth border, small upper leg lump, uniformly colored upper leg bump
    Symptoms that always occur with upper leg mole:
    unchanged upper leg bump, black or brown upper leg bump
    Urgency:
    Wait and watch
  2. 2.Blackhead

    Blackheads are caused by hair follicles becoming clogged with oil & dead skin cells. When the clogged pore is open to the air, the air turns the outermost layer black through oxidation.

    Blackheads should go away within the next 3-4 days

    Rarity:
    Common
    Top Symptoms:
    small facial lump, black or brown facial bump
    Symptoms that always occur with blackhead:
    small facial lump, black or brown facial bump
    Urgency:
    Self-treatment

    Black or Brown Upper Leg Bump Checker

    Take a quiz to find out why you’re having black or brown upper leg bump.

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  3. 3.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
  4. 4.Necrotizing Fasciitis of the Leg

    Necrotizing fasciitis is a potentially life threatening skin condition stemming from the infection of a wound or injury. If left untreated, it can spread to body parts surrounding the infection changing the color of the skin and degrading the tissue underneath. This can result in muscle, tissue or limb loss and a severe body-wide response to the infection.

    1-6 weeks.

    Rarity:
    Ultra rare
    Top Symptoms:
    nausea, diarrhea, vomiting, fever, chills
    Symptoms that always occur with necrotizing fasciitis of the leg:
    leg skin changes
    Urgency:
    Hospital emergency room

Questions Your Doctor May Ask About Black or Brown Upper Leg Bump

  • Q.Is the border of the bump round or are there jagged edges?
  • Q.Is the bump a single shade of black/brown or a mix?
  • Q.Do you have a rash?
  • Q.Any fever today or during the last week?

If you've answered yes to one or more of these questions, try our black or brown upper leg bump symptom checker to find out more.

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Black or Brown Upper Leg Bump Symptom Checker Statistics

  • People who have experienced black or brown upper leg bump have also experienced:

    • 16% Upper Leg Bump
    • 7% Hard Thigh Lump
    • 5% Fatigue
  • People who have experienced black or brown upper leg bump had symptoms persist for:

    • 38% Over a Month
    • 27% Less Than a Week
    • 15% Less Than a Day
  • People who have experienced black or brown upper leg bump were most often matched with:

    • 100% Blackhead
  • 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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