I have ITP since 2009 and its a frustrating journey to say the least. My platelets do good for awhile and then bottom out like down to 30,000. I have a had a bone marrow biopsy three years ago and nothing was found all negative. And whenever I face surgery I have to be put on prednisone like I am now because I will be facing my second knee replacement surgery. I don't have much of an immune system and my Hematologist says I have some form of auto immune disease just don't know which one because there are many. So I'm reaching out to others because none of friends or family understand what I'm dealing with.