Trump's condition is "benign and common", particularly in individuals over the age of 70, according to a note from White House physician, Captain Sean Barbabella, released to reporters. Chronic venous insufficiency occurs when leg veins don't allow blood to flow back up to the heart, causing it to pool in the lower limbs.

U.S. President Donald Trump has been diagnosed with a "common" vein condition after being evaluated by his doctor over swelling in his lower legs, the White House said on Thursday.

Chronic venous insufficiency is a condition in which valves inside certain veins don’t work the way they should, which can allow some of the blood to pool or collect in the veins.