It s evident that my sister s father- in law have a bit of dementia. He went missing for two days and was hospitalized for at least 2 weeks. Upon his release and in a new state, he s been admitted for having diarrhea and blood in his stool. I believe he s in his 80 s. Tests are being ran to see the cause. I was just wondering what you think. I know it could be a number of things, colon cancer, rectal cancer, crohn s disease, procitis, colits. just curious.