Sodomy is quite destructive behavior. Even if you take the Biblical aspect out of it, you still have bacteria which belongs in one part of the body being exposed to parts of the body which it doesn't belong. There's no telling what all damage that does to the human body.

I know when we had health class in school, girls were told to wipe from the front to the back to keep bacteria from getting into the female anatomy.

The practice of sodomy is not healthy or beneficial in any way.