Lymphedema is an accumulation of lymphatic fluid that causes swelling, most
often in the arms or legs, but occasionally in other body parts (including
face, neck, abdomen, and lungs). This chronic condition can develop when the
channels and ducts that transport lymph are missing, impaired, or damaged.
In addition to swelling, symptoms of lymphedema may include a feeling of heaviness,
cosmetic deformity, skin changes, and infection in the affected area. Left
untreated, the accumulation of lymph can reduce oxygen availability in the
circulatory system, interfere with wound healing, and provide a breeding ground
for bacterial infection. If the swelling and inflammation persist unchecked,
the tissue eventually thickens and hardens, leading to decreased circulation
and more severe symptoms.