Well, one of the problems with being as brief as you are is you don't give me any real information to go on. If you want me to take the time to provide a complete answer, then you need to take the time to give a complete description of the problem.

Male = how old?
Eats = eats what? (If kibble?-what kind / If raw?-what exactly?)?
Problem = how long has this been going on?
Exposure to coccidia?
Etc., etc.

Your male could have a blockage and need surgery, he could be allergic to a shitty food ... there are a variety of things that could be wrong ... or he may just get excited and play too much, I have no idea.

But unless you put the necessary time and thought into your question, I don't have anything really to go on as far giving you an answer

Jack