== Anal Sex: causing fissues a myth? == 

 I once read a study claiming people who partake in anal sex don't have a remarkably higher incidence of fissures than those who don't. I wish I can say I was able to find the source of this study but I cant. It said it's often just confusion over the causation of the fissure, which one would intuitively think anal sex is but usually isn't, as most people who have both fissures and anal sex also have digestive troubles which would lead to a fissure. If anybody can find a source regarding this, please do add it and change the article as needed.