These sudden purple patches on my arms won’t stop appearing, and my doctor is booked until January. What’s happening?



  • Causes: Blood thinners (aspirin, warfarin, Eliquis), steroids, or even supplements like fish oil or ginkgo.
  • Looks like: Irregular purple areas that fade slowly (like a bruise, but no injury recalled).
  • Usually harmless, but worth reviewing medications with your doctor.

⚠️ 3. Petechiae or Purpura from Low Platelets

  • What it looks like:
    • Petechiae: Tiny, flat, pinpoint red/purple dots that don’t blanch (don’t turn white when pressed).
    • Purpura: Larger purple patches that also don’t blanch.
  • Could signal: Low platelets (thrombocytopenia), infection, or autoimmune issues.
  • More concerning if: You also have nosebleeds, gum bleeding, heavy periods, or fatigue.

⚠️ 4. Vasculitis (Inflamed Blood Vessels)

  • What it looks like: Purple spots that may be raised, painful, or itchy, often on lower legs—but can appear on arms.
  • Other signs: Joint pain, fever, or rash that spreads.
  • Needs evaluation—some forms are treatable but require care.

🚨 When to Seek Urgent Care (Don’t Wait for January!)

Go to an urgent care clinic or ER if you have any of these red flags:

  • Purple patches that spread quickly
  • Patches that are painful, swollen, or warm
  • Fever, fatigue, or unexplained weight loss
  • Bleeding from gums, nose, or in urine/stool
  • Tiny red dots (petechiae) that don’t blanch
  • History of cancer, liver disease, or immune disorders

💡 Blanch test: Press a clear glass or your finger firmly on the patch. If it stays purple, it’s likely bleeding under the skin (purpura). If it turns white, it’s probably a rash (less urgent).

🩺 What You Can Do Now (While Waiting for Your Appointment)

  1. Take clear photos weekly to track size/color changes.
  2. Review medications/supplements—especially blood thinners or NSAIDs (ibuprofen, naproxen).
  3. Avoid trauma—wear long sleeves if bumping easily.
  4. Don’t take aspirin or ibuprofen—they can worsen bruising.
  5. Call your doctor’s office again—explain it’s new, unexplained purpura, and ask for a nurse advice line or dermatology referral.

💛 The Bottom Line

While senile purpura or easy bruising is the most likely cause (especially if you’re over 50), sudden, unexplained purple patches should always be checked—not because it’s likely serious, but because some causes need early treatment.

You don’t have to wait until January if you’re worried. Urgent care clinics can evaluate skin concerns and order basic blood tests (like a CBC to check platelets). It’s always better to be safe—and give yourself peace of mind.

Wishing you clarity and quick answers. You’ve got this. 💙