Swollen feet is not a single clear sign of one disease. It’s a symptom called edema, and it can come from many different causes—some simple, some serious.
Here’s what it may indicate:
🟡 Common (less serious) causes
- Standing or sitting for long periods
- Hot weather
- Eating too much salt
- Long travel or inactivity
- Pregnancy (temporary fluid retention)
🟠 Medical conditions that can cause swelling
- Heart problems (heart not pumping efficiently → fluid buildup)
- Kidney disease (body cannot remove excess fluid properly)
- Liver disease (low protein levels cause fluid leakage)
- Vein problems / varicose veins (poor blood return from legs)
- Lymphatic blockage (lymphedema)
- Certain medications (like some blood pressure drugs)
🚨 Warning signs (seek medical help quickly if present)
- Swelling in only one leg with pain or redness
- Shortness of breath or chest pain
- Sudden or severe swelling
- Fever or warm, tender skin
- Swelling with reduced urination or fatigue
🧠 Simple explanation
👉 Feet swell when fluid builds up and doesn’t return properly to the heart or kidneys.
👍 What you can do for mild swelling
- Elevate feet above heart level
- Reduce salt intake
- Walk or move regularly
- Avoid sitting or standing too long
- Stay hydrated
If you want, tell me:
- age
- one foot or both
- any other symptoms
I can help you narrow down the likely cause more accurately.