According to the National Lymphedema Network:
“Lymphedema is an abnormal collection of high-protein fluid just beneath the skin. This swelling, or edema, occurs most commonly in the arm or leg, but it also may occur in other parts of the body including the breast or trunk, head and neck, or genitals. Lymphedema usually develops when lymph vessels are damaged or lymph nodes are removed (secondary lymphedema) but can also be present when lymphatic vessels are missing or impaired due to a hereditary condition (primary lymphedema).”
Although there is no cure for lymphedema, it can be managed effectively with compression garments, elevation of the swollen limb/body part, manual lymph drainage massages and various exercises.