Read below about black or brown mass on hand, including causes and common questions. Or get a personalized analysis of your black or brown mass on hand 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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3 Potential Black or Brown Mass on Hand 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.Atypical Mole

    Moles are growths on the skin. They happen when pigment cells in the skin, called melanocytes, grow in clusters. Certain moles are considered "atypical" because of their size and characteristics, which require careful watching and possibly even biopsy in order to monitor for development into cancer.

    Indefinite

    Rarity:
    Uncommon
    Top Symptoms:
    brown-colored skin changes, black-colored skin changes, atypical hand bump features, small hand lump, black or brown mass on hand
    Symptoms that always occur with atypical mole:
    black or brown mass on hand, atypical hand bump features
    Urgency:
    Primary care doctor

    Black or Brown Mass on Hand Checker

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  2. 2.Mole on the Hand

    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 hand bump, small hand lump, black or brown mass on hand, bump's smooth border, uniformly black/brown bump
    Symptoms that always occur with mole on the hand:
    unchanged hand bump, black or brown mass on hand
    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

    Resolves with treatment

    Rarity:
    Rare
    Top Symptoms:
    small hand lump, hand itch, painful hand lump, skin-colored hand bump, pink or red mass on hand
    Urgency:
    Wait and watch

Questions Your Doctor May Ask About Black or Brown Mass on Hand

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

If you've answered yes to one or more of these questions, try our black or brown mass on hand symptom checker to find out more.

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Black or Brown Mass on Hand Symptom Checker Statistics

  • People who have experienced black or brown mass on hand have also experienced:

    • 10% Swollen Fingers
    • 10% Rib Pain on One Side
    • 10% Cut on the Finger
  • People who have experienced black or brown mass on hand had symptoms persist for:

    • 32% Over a Month
    • 29% Less Than a Week
    • 19% Less Than a Day
  • People who have experienced black or brown mass on hand were most often matched with:

    • 17% Atypical Mole
    • 15% Mole on the Hand
  • 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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