What should you know about elderly leg swelling?

Fluid can collect in the tissues around the ankles and lower legs when veins do not return blood efficiently, after prolonged sitting, or with some medicines. Varicose veins can contribute to swelling that worsens later in the day. Conditions affecting the heart or kidneys may cause swelling in both legs, sometimes alongside breathlessness, reduced exercise tolerance, or changes in urination. Extra body weight can also increase pressure on leg veins. The pattern, speed of onset, skin changes, and other symptoms help a clinician narrow the cause.

Record when the swelling started, whether one or both legs are affected, and whether it changes overnight or after walking. Avoid sitting still for long periods; move the ankles and take gentle walks if safe. Elevate the legs when resting, protect the skin from dryness or breaks, and wear comfortable footwear. Do not start compression stockings, water tablets, or a low-salt plan without advice if heart, kidney, or circulation problems are possible. Never stop prescribed medicine without speaking with the prescriber.

Get emergency help for swelling with sudden breathlessness, chest pain, coughing blood, fainting, or severe weakness. Seek urgent assessment for sudden swelling in one leg, especially with pain, warmth, redness, or tenderness. Arrange a prompt appointment when swelling is new, steadily worsening, associated with breathlessness when lying down, or accompanied by a marked change in urine output.

Ask whether your medicines, veins, heart, kidneys, or weight could be contributing. Ask what examinations or tests may clarify the cause, whether compression is suitable, and which changes in swelling or breathing should prompt urgent help.