Leg swelling, also known as lower-extremity edema, is a common symptom that can develop gradually or appear suddenly. While occasional swelling after long flights or standing for extended periods can be normal, persistent leg swelling may indicate an underlying vascular condition such as chronic venous insufficiency or advanced varicose veins. Interested in more? Visit: https://www.usaveinclinics.com/vein-disease-symptoms/leg-swelling/ | USA Vein Clinics