Blood Blister for Dummies

Alright, so a blood blister is a little bump that pops up on your skin and looks like a bubble filled with blood. Imagine you accidentally pinched your finger in a door and then a little red bubble appeared. That's a blood blister. It happens when the tiny blood vessels under your skin get damaged - like if you get a minor cut or pinch - and start leaking blood into the surrounding skin.

The blood then gets trapped under the skin, forming a little bubble that can be red, purple, or even dark blue in color. It might look a little scary, but it's usually not a big deal and will go away on its own as the body reabsorbs the blood. Unlike a regular blister, a blood blister doesn't have clear fluid inside - it's just blood.

So, when you hear someone say "blood blister," they're talking about that little red bubble filled with blood that appears on your skin after something like a pinch or a minor injury. It's nothing to worry too much about and should heal on its own.