Deep Venous Thrombosis
Deep vein thrombosis (DVT) is a blood clot (thrombus) in your deep veins, most commonly your legs. While this clot can cause leg pain, tenderness, or swelling, it may also occur without any symptoms making it more difficult to diagnose. This is a serious condition because these blood clots can break loose, travel through your bloodstream and block blood flow to your lungs (pulmonary embolism), which can cause sudden death. Another danger of DVT is known as post-thombotic syndrome. This occurs when the valves of the deep venous system are damaged, or veins are blocked, resulting in long-term symptoms such as pain, swelling, and discoloration of the skin.
Risk factors for DVT include long periods of sitting during travel or hospital stay, surgery, trauma and a variety of medical conditions and blood clotting abnormalities.
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Lymphedema refers to swelling, usually of your arms or legs, that results from removal or damage to your lymph nodes or lymphatic ducts. This blockage prevents lymph fluid from draining your extremity which causes fluid buildup and swelling. Potential causes include radiation, surgery, trauma and infection or inflammation. There is also a rare hereditary form of lymphedema.
Venous Stasis Ulcers
While there are many causes of leg ulcers, 80 percent of such wounds are from faulty veins. This affects approximately 1 percent of persons in the United States. Venous ulcers often come back despite treatment. Open ulcers can last from weeks to many years. Left untreated, severe complications can occur such as skin or bone infection and even cancer.