If your feet or ankles swell, it is not a clear sign of one specific disease. Swelling (edema) has many possible causes, ranging from harmless to medically important.
Common possibilities
- Standing or sitting for long periods — fluid can collect in the lower legs.
- High salt intake or temporary fluid retention.
- Venous insufficiency — leg veins have difficulty returning blood to the heart, often causing swelling that gets worse later in the day.
- Certain medications — including some blood-pressure medicines, steroids, and anti-inflammatory drugs.
- Heart, kidney, or liver problems — these can cause fluid accumulation, often in both legs.
- Lymphedema — impaired lymph drainage can produce persistent swelling.
- A blood clot (DVT) — typically causes swelling in one leg, often with pain, warmth, or redness.
🚨 When swelling needs urgent attention
Get urgent medical help if swelling is sudden or affects only one leg, particularly with pain, redness, or warmth. Swelling accompanied by shortness of breath, chest pain, coughing blood, or fainting is an emergency.
So, rather than assuming swollen feet mean a vitamin deficiency or a particular disease, the pattern, duration, and accompanying symptoms are important.
If you tell me whether one or both feet are swollen and when the swelling occurs (morning, evening, or all day), I can explain the most likely causes.
