Is it safe to say that Psoriasis is a life threatening disease? It's progessive and causes 1000's of other illnesses either by the drugs we need or infection or the destruction it causes. People don't die from AIDS but from the illnesses or drugs it causes. Poriasis is not listed as a life threatening disease. Why I don't know when it's the number one autoimune disorder in America. I almost died from MRSA infection when I was on Humira. If you have this godforsakin disease like I do then you know how I feel. I have a friend with MS that,s in a wheel chair that's much happier than me and say's she could not deal with what I have to go threw.