Leg swelling when standing for a long time can be a vascular disease that is common in people who work sedentary, sit in one place, or stand for a long time. The effect of gravity along with lack of exercise causes blood to stagnate in the legs and not return to the heart. People with varicose veins often have swelling around the ankles.

Swollen legs are a phenomenon of increased swelling in the size of the legs, usually appearing in the instep, ankle or lower leg. Swollen legs can be normal physiology or can be a potential sign of many dangerous diseases.