Mistakes in your dog nutrition
A frequent cause of sudden diarrhea are the mistakes in his nutrition. There are actually very few general rules as to what is a good diet. Certain kinds ofhave laxative effects on one dog whereas on others it causes no problem at all; it really depends on their organism. Anyway, there are some foods that are, by many, considered laxative, for example raw liver and meat, milk, raw eggs (which is not all that good, contrary to what most believe) and greasy .Important: If you have temporarily modified your dog's diet, you should go back to the habitual one. In many cases that is the solution.
Dog intestinal worms
If in the feces you find intestinal worms, you should apply a anti-worm treatment, which will temporarily aggravate the diarrhea, it will end up curing him.