Read below about forearm bump, including causes and common questions. Or get a personalized analysis of your forearm 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 Forearm Bump

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

  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.

    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
  2. 2.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.

    Resolves with treatment

    Rarity:
    Uncommon
    Top Symptoms:
    skin-colored groin bump, marble sized groin lump, small groin lump
    Symptoms that always occur with lipoma:
    skin-colored groin bump
    Urgency:
    Wait and watch
  3. 3.Skin Abscess

    A skin abscess is an infection of the deeper skin that's typically due to bacteria seen on the skin. Recently, infections are more frequently caused by Staph. Aureus (puts the "staph" in "staph infections"), which is dangerous and requires treatment.

    Good prognosis with treatment

    Rarity:
    Common
    Top Symptoms:
    rash with bumps or blisters, red rash, red skin bump larger than 1/2 cm in diameter, pus-filled rash, rash
    Symptoms that always occur with skin abscess:
    rash with bumps or blisters
    Urgency:
    Primary care doctor
  4. 4.Insect Bite on the Arm

    Insect bites are a common occurrence. Despite the discomfort they cause, most bites are harmless and will resolve on their own.

    Within a week or two.

    Rarity:
    Common
    Top Symptoms:
    swollen forearm, mild forearm pain, forearm bump, forearm redness, forearm itch
    Symptoms that never occur with insect bite on the arm:
    fever, worsening forearm redness, severe forearm pain, high-pitched breathing, wheezing, racing heart beat
    Urgency:
    Self-treatment
  5. 5.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

    Forearm Bump Checker

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  6. 6.Forearm Wart

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

    78% go away in 2 years

    Rarity:
    Common
    Top Symptoms:
    skin-colored forearm bump, painless forearm lump, small forearm lump, scaly forearm bump
    Urgency:
    Self-treatment
  7. 7.Basal Cell Carcinoma

    Basal cell carcinoma is a slow-growing form of skin cancer. Skin cancer falls into two major groups: Non-melanoma and melanoma. Basal cell carcinoma is a type of non-melanoma skin cancer.

    Indefinite

    Rarity:
    Uncommon
    Top Symptoms:
    facial skin changes, pink or red facial bump, small facial lump, painless facial bump, growing facial lump
    Urgency:
    Primary care doctor
  8. 8.Severe Skin Abscess

    A skin abscess is an infection of the deeper skin that's typically due to bacteria seen on the skin. Recently, infections are more frequently caused by Staph. Aureus (puts the "staph" in "staph infections"). If the infection begins to spread, urgent treatment is required.

    92-96% resolve with treatment within 7-10 days

    Rarity:
    Rare
    Top Symptoms:
    fatigue, fever, painful neck lump, marble-size neck lump, pink or red neck bump
    Symptoms that always occur with severe skin abscess:
    pink or red neck bump, red bump
    Urgency:
    Hospital emergency room
  9. 9.Boil (Furuncle)

    Boils are infections of a hair follicle that creates a small pocket of inflammation full of pus. It's typically caused by a common bacteria called S. Aureus.

    5-10 days

    Rarity:
    Uncommon
    Top Symptoms:
    pink or red facial bump, small facial lump, painful facial bump, marble sized facial lump, constant skin changes
    Symptoms that always occur with boil (furuncle):
    pink or red facial bump
    Symptoms that never occur with boil (furuncle):
    fever
    Urgency:
    Self-treatment
  10. 10.Pimple

    Acne, also known as pimples, occurs when hair follicles become clogged with oil & dead skin cells. Acne is extremely common and ranges from mild to severe.

    The severity of the acne dictates treatment-type and duration. With proper treatment, acne should resolve in weeks to months. In some cases, acne is a long-term condition.

    Rarity:
    Common
    Top Symptoms:
    pink or red facial bump, small facial lump, painful facial bump, marble sized facial lump
    Symptoms that always occur with pimple:
    pink or red facial bump
    Urgency:
    Self-treatment

Questions Your Doctor May Ask About Forearm Bump

  • Q.What color is the bump?
  • Q.Is your forearm bump painful to the touch?
  • Q.Any fever today or during the last week?
  • Q.Do you have a rash?

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

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Forearm Bump Symptom Checker Statistics

  • People who have experienced forearm bump have also experienced:

    • 16% Forearm Pain
    • 3% Hand Tingling
    • 3% Fatigue
  • People who have experienced forearm bump had symptoms persist for:

    • 34% Over a Month
    • 28% Less Than a Week
    • 15% Less Than a Day
  • People who have experienced forearm bump were most often matched with:

    • 100% Skin Abscess
  • 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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