People don’t spend much time thinking about their veins. After all, they silently do their work underneath the surface of the skin. However, one medical condition involving the veins, Deep Vein Thrombosis (DVT), is often underdiagnosed and serious, but measures can be taken to decrease risk. The Center for Disease Control estimates that as many as 350,000 – 900,000 Americans develop venous blood clots each year. Let’s take a look at what it is and what warning signs we may see.