Swollen feet usually mean fluid is building up in the tissues of your feet or ankles, often called edema. Common causes include standing or sitting too long, too much salt, pregnancy, being overweight, some medicines, and vein issues; it can also come from injuries, infections, blood clots, or problems with the heart, kidneys, or liver.

When it needs attention

You should get medical advice soon if the swelling is new, keeps getting worse, or happens in just one foot or leg, especially if it is painful, red, warm, or comes with fever.

Get urgent help now

Seek emergency help right away if you have swelling plus shortness of breath , chest pain, or cough up blood, since that can point to a serious problem.

What you can try

If the swelling is mild and not clearly linked to a serious issue, these steps can help:

  • Raise your legs when resting.
  • Walk or move around regularly.
  • Avoid long periods of sitting or standing.
  • Wear comfortable, non-tight shoes.
  • Cut back on salty foods.
  • Keep your feet clean and moisturized to help prevent skin problems.

Common patterns

Swelling in both feet often points to fluid retention, vein problems, pregnancy, or medication effects, while swelling in one foot more often raises concern for an injury, infection, or a blood clot.

If you want, I can also help you sort out whether your swelling sounds mild, urgent, or emergency-level based on your other symptoms.