Medical providers are seeing patients who have an increasingly common condition: nonalcoholic fatty liver disease (NAFLD). Primary care doctors should be concerned, as it may lead to serious consequences such as cirrhosis and liver cancer.

Hugo Rosen, MD, a liver disease specialist at Keck Medicine of USC and chair of the Department of Medicine at the Keck School of Medicine of USC, says most of the patients he sees have fatty liver disease. “It’s a problem that closely tracks with the emergence of obesity and diabetes throughout the world.”

A quarter of the global population is estimated to have NAFLD. Watch as Rosen shares signs and symptoms to look for in your patients, as well as what can be done.