Edema, commonly referred to as swelling, occurs when excess fluid becomes trapped in the body's tissues. It can affect any part of the body but is most often noticed in the hands, arms, feet, ankles, and legs. While occasional mild swelling (such as after standing for long periods or during pregnancy) is usually harmless, persistent or severe edema may indicate an underlying health issue. Understanding the causes, symptoms, and treatment options for edema is essential for managing this condition effectively.
What Is Edema?
Edema happens when small blood vessels (capillaries) leak fluid into nearby tissues. This excess fluid accumulates, causing the tissue to swell. The severity and location of the swelling depend on the underlying cause.
- Pitting Edema: When pressure is applied to the swollen area (e.g., by pressing with a finger), it leaves an indentation that takes time to rebound.
- Non-Pitting Edema: The skin does not indent when pressed, often seen in conditions like lymphedema or myxedema.
Common Causes of Edema
