Read below about forearm redness, including causes and common questions. Or get a personalized analysis of your forearm redness 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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5 Potential Forearm Redness 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.Non - Specific Forearm Rash

    A rash is an area of irritated or swollen skin. Often, rashes are unidentifiable and some variation of normal. For example, scratching one's arm causes it to turn red (which is caused by mast cells releasing chemicals into the local area), but that's completely normal.

    1-2 days

    Rarity:
    Common
    Top Symptoms:
    forearm redness
    Symptoms that always occur with non-specific forearm rash:
    forearm redness
    Symptoms that never occur with non-specific forearm rash:
    fever
    Urgency:
    Wait and watch
  2. 2.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

    Forearm Redness Checker

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  3. 3.Allergic Contact Dermatitis of the Arm

    Allergic contact dermatitis is a condition in which the skin becomes irritated and inflamed following physical contact with an allergen. Common products known to cause allergic dermatitis include plants, metals, soap, fragrance, and cosmetics.

    1-2 days

    Rarity:
    Common
    Top Symptoms:
    forearm redness, forearm itch, scabbed area of the forearm
    Symptoms that always occur with allergic contact dermatitis of the arm:
    forearm redness
    Urgency:
    Self-treatment
  4. 4.Cellulitis

    Cellulitis is an infection of the skin and tissues underneath it. It is most commonly caused by Group A strep and typically enters the body through a break in the skin.

    Dependent on severity of infection

    Rarity:
    Uncommon
    Top Symptoms:
    fever, forearm pain, forearm redness, painful forearm swelling, forearm injury
    Symptoms that always occur with cellulitis:
    forearm redness, area of skin redness
    Urgency:
    Primary care doctor
  5. 5.Necrotizing Fasciitis of the Arm

    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:
    Rare
    Top Symptoms:
    nausea, diarrhea, vomiting, fever, chills
    Symptoms that always occur with necrotizing fasciitis of the arm:
    skin changes on arm
    Urgency:
    Hospital emergency room

Questions Your Doctor May Ask About Forearm Redness

  • Q.Do you have a rash?
  • Q.Any fever today or during the last week?
  • Q.About your [forearm], do you notice:
  • Q.Do you currently smoke?

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

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Forearm Redness Symptom Checker Statistics

  • People who have experienced forearm redness have also experienced:

    • 14% Upper Arm Redness
    • 3% Swollen Forearm
    • 3% Hand Redness
  • People who have experienced forearm redness had symptoms persist for:

    • 33% Less Than a Day
    • 31% Less Than a Week
    • 21% Over a Month
  • People who have experienced forearm redness were most often matched with:

    • 45% Non - Specific Forearm Rash
    • 29% Allergic Contact Dermatitis of the Arm
    • 18% Insect Bite on the Arm
  • 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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