What to do when a Ragdoll cat has diarrhea?

Diarrhea in Ragdolls has many causes: bacterial, parasitic, viral or food intolerance. Give pet probiotics and watch for improvement; if none, take it to the vet for diagnosis. Tests may include infectious screens, fecal, blood and biochemistry.

Prolonged diarrhea easily causes dehydration and secondary infection from low immunity, so do not ignore it.