How to address "picking"?

Thank you so much to everyone for responding!@alien99-I appreciate your honesty and willingness to discuss this.It is a real sensitive issue.The hardest part for me is not seeing any physical signs,but I still find bloody things in the trash,etc.I worry with his diabetes that something could get infected and not find out about it until it gets really bad.This whole topic(and many others)is totally off limits for him.I try on a daily basis to keep my communication with him honest and gentle in hopes that he knows I’m open to whatever/whenever he feels like sharing.In the meantime,I have a lot of wonderful friends here to help me down this road! ( :

Is his diabetes under control? I know that this coming at the problem “sideways” but high blood sugar makes people anxious. Maybe you could look at that too.