I have a 6 year old male beagle h has diarrhrea for a month wont eat anything all he does eat grass?

And your question is?

Take it to a vet.

Why wait over a month? You should've taken him to a vet the week he had diarrhoea and it didn't ease.

Take him to the vet.

take him to the vet. good luck.

Don't let him eat grass It's bad for him and can actually KILL him if he eats enough.

Get your dog to the vet with a fresh fecal sample so they can get to work resolving this.

Seriously...diarrhea for a month and you haven't taken him to the vet?

ETA: You can disagree with my first paragraph all you want. Doesn't make it incorrect.

I see what you have written but I don't see a question.

Diarrhea for a month??!!!!!!! VET. common sense.

At what point will you realise he needs a vet? Take him in on Monday.