 [ Symptoms ] can you get a bladder infection after a colonoscopy is anything inserted into the urethra during this procedure [ Disease ] usually when we talk about a blood clot in the leg  we are referring to a deep vein thrombosis dvt this is a blood clot deep in the leg usually but not always in the calf muscle that can cause complications such as a pulmonary embolism or stroke part of the reason why a dvt is scary is because we can not see it only after it begins causing problems do we notice its presence a red swollen lower leg what you are describing sounds more like a varicose vein these veins lie close to the surface of the skin and are easily visible varicose veins have a ropey appearance and can be painful and cause swelling of the leg or foot interestingly on rare occasion a varicose vein can actually be a sign of a dvt for this reason and because the vein is causing you discomfort it would be a good idea to have this checked out by your primary care provider best wishes to you