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Reviewed by medical AI · Updated: March 30, 2026
Medical causes of swelling and fluid retention, from benign to serious, and treatment options.
vHospital · Health Education
Edema is the accumulation of fluid in body tissues, most commonly causing swelling in the legs, ankles, and feet. Causes range from prolonged sitting to heart failure.
Common causes include venous insufficiency, pregnancy, medications (calcium channel blockers, NSAIDs), heart failure, kidney disease, liver cirrhosis, and lymphatic obstruction.
See also: Leg Swelling: Causes and When to Worry
Treatment targets the underlying cause. Leg elevation, compression stockings, dietary sodium restriction, and diuretics are commonly used. Walking activates the calf muscle pump and reduces venous pressure.
Seek evaluation for sudden swelling, one-leg swelling (possible DVT), swelling with shortness of breath or chest pain, or swelling not responding to elevation and rest.
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⚠️ This content is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.