Trump Has Chronic Venous Insufficiency. How Serious Is the Condition?

After developing swelling in his lower legs, President Donald Trump was diagnosed with chronic venous insufficiency, a condition that develops when blood doesn’t properly flow from the legs back toward the heart. A battery of tests including vascular studies, ultrasounds and a laboratory analysis of his blood found no evidence of clotting in his veins, artery disease, heart failure or kidney impairment, the White House said in a statement.

Chronic venous insufficiency, or CVI, is common in people over 50. While roughly one in 20 adults develop it, according to the Cleveland Clinic, it isn’t well known. Treatments are available and typically begin with lifestyle changes.