What medical conditions cause petechiae?
Petechiae may be caused by any of a number of fungal, viral and bacterial infections, including:
- Cytomegalovirus (CMV) infection.
- Rocky Mountain spotted fever.
- Scarlet fever.
- Strep throat.
What is a rash that looks like blood spots?
Petechiae are pinpoint, round spots that appear on the skin as a result of bleeding. The bleeding causes the petechiae to appear red, brown or purple. Petechiae (puh-TEE-kee-ee) commonly appear in clusters and may look like a rash. Usually flat to the touch, petechiae don’t lose color when you press on them.
Can you get petechiae for no reason?
There are many possible reasons you may have petechiae, including viral and bacterial infections, use of certain medications, and serious health conditions that affect your blood. Your doctor can examine the spots and conduct any needed tests to diagnose and treat the cause of petechiae.
What’s the difference between purpura and petechiae?
Petechiae are small (1–3 mm), red, nonblanching macular lesions caused by intradermal capillary bleeding (Figure 181-1). Purpura are larger, typically raised lesions resulting from bleeding within the skin (Figures 181-2 and 181-3).
What is the most common cause of petechiae?
Petechiae are formed when tiny blood vessels called capillaries break open. When these blood vessels break, blood leaks into your skin. Infections and reactions to medications are two common causes of petechiae.
Can vitamin D deficiency cause petechiae?
Vitamin Deficiency The presence of petechiae could be a sign of vitamin deficiency. A complete blood test can showcase your vitamin levels, and a doctor will typically look for two vitamin deficiencies which can cause the appearance of petechiae.