I have now cleaned my gelding's sheath three times in three months.
The first time I noticed how gross he was looking, I cleaned him thoroughly with warm water and Excaliber and he was passably clean. Not perfect, but a whole heck of a lot better than he had been.
Thinking that he would be good for a while I didn't pay much attention to it until a month or so later. I was stunned to see so much build up. There were big chunks of smegma that had oozed out and built up on the outside of his sheath.
I cleaned again and just figured that it was because I didn't get him good enough last time. So he got a really thorough going over this time.
Next time I notice it, he has massive amounts of excess smegma again. Deep cleaned him and same thing a month later.
Am I going to be stuck doing mini cleans every two weeks or is there some reason he might be creating more smegma than (I think) is average?
He is in a nice big field and is not standing in mud or filth all day. Poor guy. It bugs him so much that he is starting to really like getting cleaned. I can only imagine how uncomfortable he is...