How to explain PSC PSC is complex and difficult to explain. Our infographic makes it easy PSC is a rare complex disease and not easy to explain. Share this graphic and video using social media for a basic, easy to understand explanation of PSC. Quality information: the information on this page has been reviewed by a panel of patients and experts (ref Q1). What is PSC? What exactly is PSC? We've got the basics covered #PSCFacts Friend or family? 12 things you you need to know about PSC Manage your care Working with your hospital and GP