Venous Ulcers Explained: Why They Occur and How to Manage Them Did you know that venous leg ulcers affect nearly 500,000 to 2 million people every year, and more than 50% of leg ulcers in the United States are classified as venous ulcers? Article source: This article was originally published on : https://www.cellutionbiologics.com/a/blog/wound-cover/venous-ulcers