Is there a 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).

How can you tell the difference between a petechiae and a rash?

Though petechiae look like a rash, they’re actually caused by bleeding under the skin. One way to tell the difference is by pressing on the spots. Petechiae won’t turn white when you press on them. A rash will turn pale.

Do petechiae turn into purpura?

They are smaller than 2 mm and usually flat. Generally, petechiae are smaller versions of purpura, and they, too, are sometimes called blood spots. They form when capillaries break and leak blood that pools beneath the skin. Like purpura, petechiae change color as the body breaks down and absorbs the pooled blood.

How do you identify purpura?

You may be able to tell the spots on your skin are petechiae instead of a rash if you press on them and they don’t turn lighter in color. Spots that are larger than 2 millimeters caused by bleeding under the skin are known as purpura.

What petechiae means?

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.

What does ecchymosis indicate?

It could be ecchymosis. That’s the medical term for a type of bruise. This dark purple spot forms on your skin when blood leaks out of your blood vessels into the top layer of your skin. It’s usually from an injury, and it’s 1/2 inch long or bigger.

What kind of blood is a petechiae purpura?

Petechiae are pinhead-sized macules of blood in the skin. Purpura. A large macule or a papule of blood that is not blanched by the application of pressure using a glass lens is identified as purpura.

What’s the difference between purpura and ecchymosis?

Petechiae are pinhead-sized macules of blood in the skin. A large macule or a papule of blood that is not blanched by the application of pressure using a glass lens is identified as purpura whereas large extravasation of blood into the skin is known as ecchymosis.

Which is larger a petechiae or ecchymosis?

Ecchymosis Ecchymoses are the largest where there is widespread extravasation of blood. Petechiae are pinhead-sized macules of blood in the skin. A large macule or a papule of blood that is not blanched by the application of pressure using a glass lens is identified as purpura.

What are the symptoms of Henoch Schonlein purpura?

Henoch-Schonlein purpura – it results in inflammatory changes in the small blood vessels and it is the most common form of childhood vascular inflammation. The symptoms of Henoch-Schonlein purpura include the following: kidney involvement, arthritis, digestive tract problems, and a rash.