Edema

Edema is the noticeable swelling resulting from fluid accumulation in certain body tissues. It is most commonly found in the feet, ankles and legs although it may also affect the face, hands and other parts of the body and body organs. Pregnant women and older adults are often affected with this condition, but it can happen to anyone. The swelling is brought about by the accumulation of excess fluid beneath the skin in the spaces within the body tissues that are outside of the blood vessels. These spaces are called interstitial spaces or compartments. Clinically there are two types of edema – pitting and non-pitting edema. Pitting edema is the term used to describe edema when pressure applied to the skin of the swollen area is released and an indentation is left behind. Non-pitting edema is the term used to describe edema when this pressure-induced indentation does not occur. Non-pitting edema usually occurs in the arms and legs.