Swollen feet and ankles are often dismissed as a temporary annoyance caused by long days, heat, or standing for extended periods. But health experts say persistent swelling — medically known as edema — can sometimes point to more serious underlying health conditions that should not be ignored.
Edema occurs when excess fluid becomes trapped in the body’s tissues, most commonly in the lower legs, ankles, and feet due to gravity. In many cases, the swelling is harmless and temporary, often linked to fluid retention, long periods of sitting or standing, travel, pregnancy, or minor injuries. People may notice tight shoes, puffiness around the ankles, or small indentations left behind after pressing on the skin.
Doctors caution, however, that ongoing or sudden swelling can sometimes be associated with deeper medical issues, including heart disease, kidney problems, liver disease, poor circulation, blood clots, or lymphatic system disorders. Experts say swelling accompanied by pain, shortness of breath, redness, or rapid onset should be evaluated promptly, as early detection can play an important role in preventing more serious complications.
