Swollen feet can develop for several reasons, and not all of them are dangerous. Spending long hours standing or sitting, eating too much salt, hot weather, and certain medications can contribute to fluid retention. Some people notice mild swelling in both ankles after a long journey or a particularly active day. In these situations, the swelling may improve with movement, rest, or elevating the legs. However, swelling that happens repeatedly, becomes more noticeable, or doesn’t improve deserves medical attention, especially when there is no obvious explanation.

Sometimes, swelling is associated with problems involving the veins or the body’s ability to regulate fluid. Chronic venous insufficiency, for example, occurs when the veins in the legs have difficulty returning blood toward the heart. This can cause ankle swelling, heaviness, skin discoloration, or discomfort. Swelling in both legs can also occur with certain heart, kidney, or liver conditions, although swollen feet alone cannot establish any of these diagnoses. A healthcare professional may need to review medications, examine the legs, and perform tests to determine the underlying cause.

One particularly important warning sign is sudden swelling in just one leg, especially when accompanied by pain, warmth, tenderness, or redness. These symptoms can sometimes indicate a deep vein thrombosis, commonly called a blood clot, and require prompt medical assessment. Swelling accompanied by sudden shortness of breath, chest pain, fainting, or coughing up blood is an emergency because it may indicate a pulmonary embolism or another serious condition. These symptoms should never be ignored or treated with home remedies alone.

For mild swelling without concerning symptoms, simple measures may sometimes help. Walking regularly, avoiding prolonged periods of immobility, and elevating the legs can encourage normal circulation. Reducing excessive dietary salt may also be beneficial for some people. Compression stockings can help certain conditions, but they aren’t appropriate for everyone and should be discussed with a clinician when the cause of swelling is uncertain. Most importantly, don’t assume persistent swelling is just part of aging. Paying attention to changes in your body and seeking medical advice when needed can help identify problems before they become more serious.

Have you ever noticed swollen feet or deep sock marks around your ankles at the end of the day?