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Learn about your hard arm bump, including causes and common questions. Or get a personalized analysis of your hard arm 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.

Hard Arm Bump Checker

Take a quiz to find out why you’re having hard arm bump.

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Your Hard Arm Bump May Also be Known as:
Firm bump in upper arm
Firm lump in upper arm
Firm mass in upper arm
Hard bump in upper arm
Hard lump in upper arm
Hard mass in upper arm
Solid bump in upper arm
Solid lump in upper arm
Solid mass in upper arm

Top 4 Hard Arm Bump Causes

  1. 1.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.

    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 out the cyst.

    Rarity:
    Common
    Top Symptoms:
    neutral colored upper arm mass, small upper arm bump, marble-sized upper arm bump
    Symptoms that always occur with skin cyst:
    neutral colored upper arm mass
    Urgency:
    Wait and watch
  2. 2.Wart

    Warts are non-serious skin growths caused by a virus that infects the top layer of the skin. They are contagious.

    You can try several over-the-counter treatments, including salicylic acid and cryotherapy (freezing). All of this said, most warts go away on their own, but less so in adults.

    Rarity:
    Common
    Top Symptoms:
    neutral colored upper arm mass, painless arm bump, small upper arm bump, scaly upper arm bump
    Urgency:
    Self-treatment

    Hard Arm Bump Checker

    Take a quiz to find out why you’re having hard arm bump.

    Take a quiz
  3. 3.Lipoma

    A lipoma is a noncancerous growth of fatty tissue cells. A lipoma can develop in almost any organ of the body although they are most commonly found in the subcutaneous layer just below the skin.

    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:
    Uncommon
    Top Symptoms:
    neutral colored upper arm mass, small upper arm bump, marble-sized upper arm bump
    Symptoms that always occur with lipoma:
    neutral colored upper arm mass
    Urgency:
    Wait and watch
  4. 4.Condition Involving Blue Skin

    Blue skin may be due to a lack of oxygen delivered to that area by the blood, which is dangerous. You should see a doctor immediately!

    There may be several explanations for this symptom and its severity, but a healthcare professional should make an assessment as soon as possible because it may be serious.

    Rarity:
    Uncommon
    Top Symptoms:
    blue skin
    Urgency:
    Emergency medical service

Questions Your Doctor May Ask About Hard Arm Bump

  • Q.How long have you had the bump?
  • Q.How fatigued are you?
  • Q.How long has your fatigue been going on?
  • Q.Is your fatigue constant or come-and-go?

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

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Hard Arm Bump Symptom Checker Statistics

  • People who have experienced hard arm bump have also experienced:

    • 23% Fatigue
    • 15% Muscle Aches All Over
    • 7% Forearm Pain
  • People who have experienced hard arm bump had symptoms persist for:

    • 39% Over a Month
    • 32% Less Than a Week
    • 10% One to Two Weeks
  • People who have experienced hard arm bump were most often matched with:

    • 13% Skin Cyst
    • 13% Wart
    • 13% Lipoma

Hard Arm Bump Checker

Take a quiz to find out why you’re having hard arm bump.

Take a quiz