Foot and ankle swelling, also known as edema, occurs when fluid accumulates in the tissues of the lower extremities. It is a common condition that can affect people of all ages. Swelling can be mild and temporary or severe and indicative of a more serious underlying health condition.
Common Causes
- Prolonged Standing or Sitting: Gravity pulls fluid into the lower legs, causing swelling, especially if you remain in the same position for extended periods.
- Injury: Sprains, fractures, or other injuries to the foot or ankle can lead to localized swelling due to inflammation or damage to the tissues.
- Heat: Warm weather can cause blood vessels to expand, allowing fluids to seep into the surrounding tissues, leading to swelling.
- Pregnancy: Hormonal changes and increased pressure on veins during pregnancy can cause fluid retention and swelling in the feet and ankles.
- Medications: Certain medications, including blood pressure drugs, steroids, and antidepressants, can cause edema as a side effect.
- Obesity: Excess weight can put additional pressure on the veins and contribute to fluid retention in the lower extremities.
- Venous Insufficiency: This condition occurs when veins in the legs have difficulty sending blood back to the heart, causing blood to pool in the legs and feet.
- Heart, Kidney, or Liver Disease: Serious conditions such as heart failure, chronic kidney disease, or liver disease can cause fluid to accumulate in the legs, leading to swelling.
- Lymphedema: Damage or blockage in the lymphatic system can cause fluid buildup, leading to chronic swelling.