What is lymphedema and facts about
What is lymphedema? Lymphedema is swelling in one or more extremities that results from impaired flow of the lymphatic system. The lymphatic system is a network of specialized vessels (lymph vessels) throughout the body whose purpose is to collect excess lymph fluid with proteins, lipids, and waste products from the tissues. This fluid is then carried to the lymph nodes, which filter waste products and contain infection-fighting cells called lymphocytes. The excess fluid in the lymph vessels is eventually returned to the bloodstream. When the lymph vessels are blocked or unable to carry lymph fluid away from the tissues, localized swelling (lymphedema) is the result.
Lymphedema facts Lymphedema is a condition that results from impaired flow of the lymphatic system. Symptoms of lymphedema include swelling in one or more extremities. The swelling may range from mild to severe and disfiguring.
Primary lymphedema is present at birth; secondary lymphedema develops as a result of damage to or dysfunction of the lymphatic system. Breast cancer treatment is the most common cause of lymphedema in the U.S. While there is no cure for lymphedema, compression treatments and physical therapy may help reduce the swelling and discomfort.
Lymphedema most often affects a single arm or leg, but in uncommon situations both limbs are affected. Primary lymphedema is the result of an anatomical abnormality of the lymph vessels and is a rare, inherited condition. Secondary lymphedema results from an identifiable damage to or obstruction of normally-functioning lymph vessels and nodes. Worldwide, lymphedema is most commonly caused by filariasis (a parasite infection), but in the U.S., lymphedema most commonly occurs in women who have had breast cancer surgery, particularly when followed by radiation treatment.
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