Petechia

Okay kiddo, have you ever had a small red or purple spot on your skin that looks like a tiny dot? That's called petechia. These spots happen because very tiny blood vessels, called capillaries, have leaked a little bit of blood. It's like when you squeeze a grape too hard and some of the juicy stuff comes out.

Petechia can happen for different reasons, like when you bump yourself or when you have certain medical conditions like a low platelet count or a blood infection. But usually, they go away on their own without causing any big problems. Just like how a scratch on your knee will heal with time.

It's important to tell a grown-up if you notice a bunch of petechia spots without any obvious cause or if they keep coming back, because they can sometimes be a sign of something more serious. But in most cases, petechia is just a small thing that will go away on its own.