What causes bloodshot eyes?

Close-up of a red, irritated, and watery eye with dry skin around it.

If you’ve ever looked in the mirror and noticed that your eyes look red and irritated, you might have wondered why. When eyes become tinged with blood and inflamed like this, they’re often referred to as ‘bloodshot’. But what causes this appearance? In this guide, you’ll learn all about the common causes of bloodshot eyes.  […]