Swollen ankles in the evening: what to know

Gravity encourages fluid to move into tissues around the lower legs during the day. Veins normally return that fluid upwards, but prolonged standing, sitting, heat, or less effective vein valves can make the ankles look puffier by evening. Swelling that improves overnight is often different from swelling that remains each morning. Both-sided swelling may relate to medicines, kidney or heart problems, or general fluid retention; one-sided painful swelling needs a different and more urgent assessment.

Break up long periods at a desk or on your feet with gentle walking and ankle movements. When resting, raise your legs on a cushion and choose shoes that do not press on swollen skin. Keep the skin clean and moisturised, and avoid tight clothing around the calves. Record when swelling starts, whether it settles by morning, and any new medicines. A clinician can advise whether compression is appropriate; do not use it over a painful or suddenly swollen leg without assessment.

Arrange a review if swelling continues for several days, keeps returning, leaves tight or shiny skin, or is accompanied by breathlessness or reduced exercise tolerance. Seek urgent help if one leg suddenly swells with pain, warmth, or redness, or if chest pain, fainting, or sudden breathlessness develops.

Could my medicines or vein circulation be contributing? Should my heart and kidney function be checked? Would compression or a specific exercise plan be safe? What change in the morning pattern should prompt a call?