Arteries carry oxygenated blood away from your heart. They have thick walls and a muscular layer that keeps your blood moving. Arteries can be as wide as a nickel (about two centimeters). They are the ...

Portal vein thrombosis means that there is a blood clot in the portal vein. This vein carries blood to the liver. A clot can fully or partially block the portal vein, as well as blood flow to the ...

Although varicose veins and deep vein thrombosis (DVT) both affect the veins, these two conditions have different causes, involve different kinds of veins, and have unique symptoms. One is also more ...