There are a few reasons you might get a bruise after a blood draw. This side effect is usually harmless and while it's not always avoidable here's what to know and what you can do.

From stress to dehydration, there are many reasons why some people's veins may be "hard to find" when they're getting an infusion or blood draw. When you purchase through links on our site, we may ...

Your blood sample is sent to the laboratory for analysis. This shows the different types of cells, chemicals and proteins in the blood. Preparing for your blood tests. You can eat and drink normally ...

The practice of drawing blood has changed very little over the decades. It looks about the same now as it did 50 years ago. That process, however, may be about to get a modern makeover. Several ...