What does edema refer to?

Edema refers to the condition where there is too much fluid in the body's tissues, resulting in swelling. This accumulation of fluid can occur in various parts of the body, including the legs, ankles, and feet, and may also affect the lungs or abdomen. Edema can result from a variety of causes, such as heart failure, kidney disease, or inflammation, and it is often a sign that the body is not managing fluids properly. This understanding highlights the importance of recognizing the symptoms of edema in providing adequate care, as it can indicate underlying health issues requiring attention.

The other options describe different conditions that are not related to the definition of edema. Loss of fluid, increased perspiration, and fluid retention in urine do not accurately represent the phenomenon of excess fluid buildup in tissues, which is the essence of edema.