Medical News Today: Why are my lymph nodes swollen?

Swollen lymph nodes usually indicate a temporary infection, but they can also be a sign of some medical conditions, including certain immune disorders and types of cancer. We look at the causes of swollen lymph nodes, how to check the lymph nodes, treatment options, and when to see a doctor.

Medical News Today: How to identify pitting edema

Edema refers to swelling caused by excess fluid. When swollen skin remains indented after being pressed, this is called pitting edema. It is most common in the legs, ankles, and feet. Several conditions and factors, such as pregnancy, can cause pitting edema. Learn how it is identified, treated, and prevented here.