Swollen feet and legs are something many people experience at some point in life.
For some, it happens after standing all day.
For others, swelling appears during hot weather, long travel, pregnancy, or aging.
But sometimes, persistent swelling may signal that the body is struggling with circulation, fluid balance, or another underlying health issue.
Understanding what causes swelling — and when it may require medical attention — can help you protect your overall health.
What Is Leg or Foot Swelling?
Swelling occurs when excess fluid builds up inside body tissues.
Doctors call this condition edema.
It most commonly affects:
- feet,
- ankles,
- calves,
- and lower legs.
Swelling may develop gradually or suddenly depending on the cause.
Some cases are mild and temporary, while others may indicate a more serious medical condition.
Common Symptoms of Swelling
People with swollen legs or feet may notice:
- puffiness,
- tight or shiny skin,
- discomfort while walking,
- heaviness,
- stiffness,
- or shoes suddenly feeling tighter.
In some cases, pressing on the swollen area leaves a temporary dent in the skin. This is called “pitting edema.”
