Final answer:
Edema is the swelling due to an excess of fluid in the tissues. It is most commonly found in the soft tissues of the extremities and is caused by various factors such as medical conditions or injury. Symptoms include swelling of the subcutaneous tissues.
Step-by-step explanation:
Swelling due to an excess of fluid in the tissues is known as edema. Edema is the accumulation of excess water in the tissues and is most common in the soft tissues of the extremities. It is usually caused by an underlying medical condition, therapeutic drugs, pregnancy, localized injury, or an allergic reaction. Symptoms of edema include swelling of subcutaneous tissues, increase in limb size, and stretched, tight skin.