If you’re asking about the claim “If your feet swell, it is a clear sign that…”, the important correction is: swollen feet are not a clear sign of one particular disease.
Swelling of the feet and ankles is called oedema (edema)—fluid accumulating in the tissues. It can happen for relatively simple reasons such as sitting or standing for a long time, eating a lot of salt, being overweight, or taking certain medicines. (Mayo Clinic)
Possible causes include
- Vein problems — blood doesn’t return efficiently from the legs.
- Heart problems — heart failure can cause fluid to accumulate in the legs.
- Kidney disease — impaired fluid and salt removal can cause swelling.
- Liver disease — particularly advanced liver disease.
- Certain medications, including some blood-pressure medicines.
- Injury or infection.
- A blood clot (DVT) — especially when swelling develops suddenly in one leg, particularly with pain or warmth. (Mayo Clinic)
🚨 When swelling needs urgent attention
Get urgent medical assessment if swelling is sudden, severe, painful, red/hot, or affects only one leg without an obvious reason. (nhs.uk)
If swelling occurs with chest pain, significant shortness of breath, coughing up blood, faintness, or severe dizziness, seek emergency medical care immediately because a blood clot or serious heart/lung problem may be involved. (Mayo Clinic)
Bottom line: Don’t assume swollen feet automatically mean “poor circulation,” kidney disease, or heart failure. The pattern, duration, other symptoms, medications, and medical history determine the likely cause.
