i will vouge for the connection between weed somking and this condition. I'm 17 and i also have problems with anal odor i have recently stoped smoking pot and my symptions are getting a little less bad. What has worked for me the most is i shower before school and when i get out of the shower i apply a small amount of neosp 0 r n and then deodorent to my anal region this keeps the odor down untill about noon and i have a t-a class that i can leave early and come back home to repete the process. i am thinking more and more that i might have ibs becuase some of the times that i was made aware of the smell i went to the bathroom and had to wipe a fair amount of fecial matter from my butt. also it normally take about a half a roll of t-p after going poop to clean up. do you think this sounds like ibs to you?