What is lymphedema? Lymphedema is a collection of fluid that
causes swelling (edema) in the arms and legs. What causes
lymphedema? One of the causes of lymphedema is surgery to remove
lymph nodes , usually during cancer treatment. Normally, lymph
nodes filter fluid as it flows through them, trapping bacteria,
viruses, and other foreign substances, which are then destroyed
by special white blood cells called lymphocytes. Without normal
lymph drainage, fluid can build up in the affected arm or leg,
and lymphedema can develop. Medicines such as tamoxifen
(Nolvadex), radiation therapy, and injury to the lymph nodes can
also cause lymphedema. This type is called secondary lymphedema.
Primary lymphedema can be present at birth or develop during
puberty or adulthood. The cause of primary lymphedema is not
known. What are the symptoms? Symptoms of lymphedema include
feeling as though your clothes, rings, wristwatches, or
bracelets are too tight; a feeling of fullness in your arms or
legs; and less flexibility in your