What is edema?
Edema is swelling throughout your body. Edema is usually a sign that you are retaining fluid. The swelling may be caused by heart failure or kidney, thyroid, or liver disease. It may also be caused by medicines such as antidepressants, blood pressure medicines, or hormones. Sudden swelling around the lips or face may be a sign of a severe allergic reaction. Swelling of an arm or leg may be caused by blockage of your veins.
