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Learn about your black or brown leg bump, including causes and common questions. Or get a personalized analysis of your black or brown 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.

Black or Brown Leg Bump Checker

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

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Your Black or Brown Leg Bump May Also be Known as:
Black bump on leg
Black bump on lower leg
Black leg bump
Black leg bumps
Black leg lump
Black leg mass
Black lower leg bump
Black lower leg bumps
Black lower leg lump
Black lower leg mass

Top 3 Black or Brown Leg Bump Causes

  1. 1.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.

    Though large blackheads can be removed by a dermatologist, most cases can be treated with proper hygiene and over-the-counter medications/treatments. Look for products containing benzoyl peroxide or salicylic acid.

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

    Black or Brown Leg Bump Checker

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

    Take a quiz
  2. 2.Mole on the Lower Leg

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

    If you have many moles that you are worried about, you can go see your primary care doctor to follow the moles. However, treatment is only considered if a new mole develops or changes.

    Rarity:
    Uncommon
    Top Symptoms:
    unchanged lower leg bump, black or brown leg bump, small lower leg lump, bump's smooth border, uniformly black/brown lower leg bump
    Symptoms that always occur with mole on the lower leg:
    unchanged lower leg bump, black or brown leg bump
    Urgency:
    Wait and watch
  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

    You do not need treatment for this condition because it is completely benign; however, if the lesion changes at all, a doctor should be consulted. If you would like it removed, a doctor can cut, freeze, or burn it off.

    Rarity:
    Rare
    Top Symptoms:
    lower leg itch, skin colored mass on lower leg, painful lower leg lump, small lower leg lump, marble-size lower leg lump
    Urgency:
    Wait and watch

Questions Your Doctor May Ask About Black or Brown Leg Bump

  • Q.Is your bump getting bigger?
  • Q.Is there something on the surface of the bump?
  • Q.Is the border of the bump round or are there jagged edges?
  • Q.Any fever today or during the last week?

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

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Black or Brown Leg Bump Symptom Checker Statistics

  • People who have experienced black or brown leg bump had symptoms persist for:

    • 39% Over a Month
    • 24% Less Than a Week
    • 14% Less Than a Day
  • People who have experienced black or brown leg bump were most often matched with:

    • 33% Mole on the Lower Leg
    • 16% Dermatofibroma
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

Black or Brown Leg Bump Checker

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

Take a quiz