What is deep vein thrombosis?

Around Tinley Park, deep vein thrombosis and venous disease turn up in the same searches, and readers reasonably ask whether they name one thing or two. This page answers the first term and keeps the second beside it for checking.

The answer in one line

my.clevelandclinic.org describes it as "A blood clot, or deep vein thrombosis (DVT), developing inside a leg vein."

Reading the two terms side by side

Venous disease is the label this page sets beside it. Each has its own overview, and opening the deep vein thrombosis overview and the venous disease overview one after the other lets you hold each definition against its own source.

The follow-up to ask next

Once a clot in a leg vein is defined, the natural next question is whether it can be prevented. That is the comparison this site takes up after this page.