The Causes Foot, leg, and ankle swelling is common with the following
Being overweight, Blood clot in the
leg, Increased age,
Leg infection, Veins in the legs that cannot properly pump blood back to the heart.
Injury or surgery involving the leg, ankle, or foot can cause swelling. Swelling may also occur after pelvic surgery, especially for cancer.
Long airplane flights or car rides, as well as standing for long periods of time, often lead to some swelling in the feet and ankles.