Lymphedema
Lymphedema occurs when a clear fluid known as lymphatic fluid builds up in the soft tissues of your body, usually in an arm or leg. The lymphatic system consists of lymph vessels and lymph nodes that run through your body. Lymph vessels collect a fluid that is made up of protein, water, fats, and wastes from the cells of the body. Lymph vessels carry this fluid to your lymph nodes. Lymph nodes filter waste materials and foreign products, and then return the fluid to your blood. If your vessels or nodes become damaged or are missing, the lymph fluid cannot move freely through the system. The fluids can then build up and cause swelling, known as lymphedema, in the affected arms or legs.
