Lymphedema

Lymphedema means swelling of the lymph passages. Lymphatic obstruction is a blockage of the lymph nodes -- vessels that drain fluid from tissues throughout the body and allow immune cells to travel where they are needed.

Learn more about lymphedema in our health encyclopedia.

Lymphatic system

The lymphatic system filters fluid from around cells. It is an important part of the immune system.

Learn more about the lymphatic system in our health encyclopedia.

What is lymphedema?

Lymphedema is the swelling of a body part (usually arms or legs). This can occur after radiation or removal of lymph nodes.

Your lymphatic vessels drain extra fluid, which goes through your lymph nodes. Your lymph nodes filter the fluid and help protect you from infection.

When lymph nodes are removed, your lymphatic system is damaged. This protein-rich fluid can build up in your tissues and cause swelling.

Lymphedema can develop right away after surgery or many years later.

Symptoms of lymphedema

Lymphedema symptoms include:

• tight-fitting clothing or jewelry
• heavy, tight feeling in your arm or leg
• tingling feeling in your arms or legs
• swelling of body parts
• aching feeling in your arm or leg or an arm or leg that becomes tired more easily.