Read below about flat, blue/purple rash, including causes and common questions. Or get a personalized analysis of your flat, blue/purple rash 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 Flat, Blue / Purple Rash

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced flat, blue/purple rash. This list does not constitute medical advice.

  1. 1.Wegener's Granulomatosis

    An inflammation of the blood vessels by the body's immune system is a rare, but possibly dangerous problem. The inflammation can happen anywhere, but often in the sinuses, lungs, and kidneys.

    Uncertain

    Rarity:
    Ultra rare
    Top Symptoms:
    fatigue, loss of appetite, joint pain, shortness of breath, fever
    Urgency:
    Primary care doctor

    Flat, Blue / Purple Rash Checker

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  2. 2.Immune Thrombocytopenia

    Platelets are tiny cells in the blood that help form blood clots and seal minor cuts and wounds. Immune thrombocytopenia, also known as immune thrombocytopenic purpura (ITP), is a condition where there are not enough platelets in the blood, causing easy bruising and tiny reddish purple dots on the skin from bleeding under the surface.

    This is a complex condition that requires consultation from a doctor to determine its course.

    Rarity:
    Rare
    Top Symptoms:
    being severely ill, rectal bleeding, red stool, unexplained/excessive bleeding from cuts or wounds, unexplained bruising
    Symptoms that always occur with immune thrombocytopenia:
    being severely ill
    Urgency:
    Primary care doctor
  3. 3.Churg - Strauss Syndrome

    Churg-Strauss syndrome (CSS) is an extremely rare disease which involves inflammation in certain types of cells in the blood or in tissues. This inflammation causes injury to many organ systems, and the cause of CSS is not known well by doctors.

    Extremely rare disease, and consultation with a specialist is required to determine the outlook.

    Rarity:
    Ultra rare
    Top Symptoms:
    fatigue, abdominal pain (stomach ache), muscle aches, shortness of breath, cough
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Flat, Blue / Purple Rash

  • Q.Any fever today or during the last week?
  • Q.What color is the skin change?
  • Q.Are there bumps on your rash?
  • Q.Have you been feeling more tired than usual, lethargic or fatigued despite sleeping a normal amount?

If you've answered yes to one or more of these questions, try our flat, blue/purple rash symptom checker to find out more.

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Flat, Blue / Purple Rash Symptom Checker Statistics

  • People who have experienced flat, blue/purple rash have also experienced:

    • 3% Fatigue
    • 2% Feeling Itchy or Tingling All Over
    • 2% Big Toe Pain
  • People who have experienced flat, blue/purple rash had symptoms persist for:

    • 29% Over a Month
    • 27% Less Than a Week
    • 25% Less Than a Day
  • People who have experienced flat, blue/purple rash were most often matched with:

    • 33% Wegener's Granulomatosis
    • 33% Immune Thrombocytopenia
    • 33% Churg - Strauss Syndrome
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

A.I. Health Assistant

Take a quiz to find out why you’re having flat, blue/purple rash

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