November is National Family Caregivers Month.Lymphedema is a build-up of a watery fluid in your body called lymph, causing chronic swelling, usually in an arm or leg. Lymph, which supports your overall health and your immune system function, flows from your tissues into the lymphatic vessels, and then through a cluster of nodes (lymph nodes) that filter out bacteria and other unwanted substances. If any of the lymph nodes are removed or damaged as part of cancer treatment, the remaining nodes have to work harder to filter the lymph. They can then become inflamed or even blocked, so the lymph b...

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