I see you posted about this yellowish egg back in 2004. I've never been on this site before and don't really know how to use it. But I'm searching for answers to the same egg in my stool - did you ever find out what it was? And how did you or your doctor take care of the problem? Mine's smaller than an inch, wider than a jelly bean. When I slit it open an oily substance came out...My doctor has never seen anything like it either, and prescribed a $4,000 medication, which I cannot buy. What can you tell me from your experience?