Swollen feet might seem minor, but they “can actually reveal important clues about your overall health.” Fluid buildup in the feet or ankles may indicate underlying issues.

One common cause is poor circulation, especially for those who sit or stand for long periods. When blood doesn’t flow properly, fluid collects in the lower limbs, leading to swelling and discomfort.

Fluid retention, or edema, “can occur for several reasons, including high salt intake, hormonal changes, or medication side effects.” Simple adjustments—like elevating your legs or reducing sodium—often help.

Persistent swelling may signal serious problems such as heart, kidney, or liver disease. Swelling with pain, redness, or warmth might indicate infection or inflammation, while swelling in one leg with tenderness could be a blood clot—a “medical emergency” needing immediate attention.

Sometimes, swelling is temporary, caused by heat, pregnancy, or prolonged standing. Gentle exercise, hydration, and compression socks can help. While not all swelling is serious, “if your feet remain swollen for several days or the condition worsens, consult a doctor.” Paying attention to these signals can prevent bigger health problems and keep you on your feet—literally.