The lymphatic system is a network of vessels, ducts, and nodes that
drains and filters fluid (lymph) in the body. It also helps fight infection and
destroy foreign substances, such as bacteria and viruses.
Lymphedema is a swelling that develops in an arm or
leg because of blocked lymph fluid flow, which causes lymph fluid to collect in
the tissue under the skin.
Symptoms of deep vein thrombosis -- a blood clot in a deep vein -- may be difficult to identify. That's because DVT symptoms are similar to many other health problems.
If you're at risk for DVT -- you are over 60, you smoke, you are overweight, you sit for long periods of time -- stay alert to DVT symptoms. If you have symptoms, learn what you can do to confirm a diagnosis.