President Donald Trump was examined for swelling in his legs and has been diagnosed with chronic venous insufficiency, the White House announced Thursday.

The White House said on Thursday that U.S. President Donald Trump is experiencing swelling in his lower legs and bruising on his right hand, after photographs emerged of Trump with swollen ankles and makeup covering the afflicted part of his hand.

President Donald Trump has been diagnosed with chronic venous insufficiency, but what is that? Is it serious? Symptoms? What to know.