What is Petechiae?

A petechia (; plural petechiae ) is a small (1–2 mm) red or purple spot on the skin, caused by a minor bleed (from broken capillary blood vessels).

Petechia refers to one of the three descriptive types of bleeding into the skin differentiated by size, the other two being purpura and ecchymosis. Petechiae are by definition less than 3 mm.

The term is almost always used in the plural, since a single lesion is seldom noticed or significant.

Questions and answers on "Petechiae"

I have just recently noticed very small red dots all up and down my legs, I have done some research and am still not sure what it is but I think it...

doctor1 MD

Dear friend.

Thanks for sharing your concern.

small red dots 1to 3 mm in size are called petechiae.This can be caused due to excessive pressure...

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After extended hiking, I routinely develop extensive petechiae on both lower ankles to the extent the skin is colored bright red. It is not a rash...

doctor1 MD

Thanks for the query.

You might be having a low platelet count and hence you are developing these bruises.

Get platelet levels checked....

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