Medical experts answer questions about President Donald Trump's chronic venous insufficiency (CVI) diagnosis and what to know about the risks and treatment of this common condition.

Swollen legs led to President Donald Trump being diagnosed with what's called chronic venous insufficiency. It's a fairly common condition among older adults but requires a thorough checkup to rule out more serious causes of swelling in the legs.

It’s not yet clear how Trump will be treated for the condition, which was revealed on Thursday — but here’s what you need to know about the ailment.