India, Sept. 25 -- Swollen feet after a long day may seem like an after-effect of spending hours on your feet or standing during your commute. Your shoes appear tighter than usual. But what if the swelling becomes a regular occurrence? It could point to an underlying health issue, including a build-up of fluid in the body's tissues. Cardiologist Dr Rahul R Gupta explained what causes this swelling and when you should get medical help. ALSO READ: Can you have a heart attack with normal cholesterol? Cardiologist shares 3 lesser-known triggers

Speaking of edema, he said, "It is a condition characterised by excess fluid building up in the body's tissues." But more than a disease in itself, the cardiologist clarified that it is a sign or symp...