Injuries, infections, or chronic venous insufficiency can also lead to localized or persistent swelling. Watch for pain, warmth, redness, bulging veins, or skin changes, which may require medical care to prevent complications.
Persistent, worsening, or painful swelling—especially with redness, fever, or breathing difficulties—requires prompt medical evaluation. Feet often reveal early signs of circulation, organ, or inflammatory issues, and addressing them early can protect long-term health.