Experts at Harvard Medical School in the US explained: “If it persists, you likely need to see a doctor because swelling (also called oedema) can be a red flag for a more serious underlying problem, such as heart failure, deep vein thrombosis (a blood clot in a leg vein), kidney disease, or cirrhosis of the liver.
Sign in the foot that could signal heart failure, liver disease or blood clots Experts have urged people to speak to a doctor if they experience a potentially painful symptom in the feet that does not go away.
“When you are on your feet a lot, gravity pulls blood into the veins of your legs, and some of the water in the blood enters the tissues of your legs and feet, causing them to swell.
These clots can block the return of blood from the legs to the heart, leading to swelling of the legs and feet.
Swollen feet could signal a myriad of dangerous health issues, from heart failure to blood clots.