Swollen ankles on vacation: what to know

Warm weather widens blood vessels, while long flights, car journeys, or coach trips reduce the calf-muscle movement that helps return blood to the heart. Extra walking can also irritate tissues around the feet and ankles. Swelling in both ankles that improves after rest is often linked with these temporary factors. Persistent swelling can also occur with vein problems, kidney disease, heart failure, or obesity; the symptom alone cannot identify its cause.

Move your ankles and walk briefly at regular intervals during a journey. When resting, raise your legs on a bag or cushion, choose roomy footwear, and avoid tight socks around the calves. Drink normally, take breaks from heat, and moderate salty packaged food. Do not start water tablets or compression garments without advice, especially if you have circulation problems, are pregnant, or take regular medicines. Photographing the swelling and noting whether it changes overnight can help a clinician assess it.

Seek urgent medical help for sudden swelling in one leg, calf pain or tenderness, warmth, redness, chest pain, breathlessness, faintness, or coughing blood. Arrange a medical review if swelling is new and persistent, keeps returning, becomes painful, or does not improve after rest. A clinician may examine both legs and review your journey, medicines, and medical history.

Could heat, travel, or a medicine explain this swelling? Do I need assessment for a clot or a vein problem? Is elevation, exercise, or a particular support garment suitable for me? Which changes should prompt urgent care?