Superficial thrombophlebitis, which is more common, occurs near the surface of the skin. Deep vein thrombosis, also known as DVT, occurs within a muscle and can increase the risk of serious health ...

it’s called superficial phlebitis. When it affects a deeper vein, it’s called deep vein thrombosis.” “Because of her phlebitis, the legs were very, very swollen, and the blood was blocked ...