The first thing is not to get overly worried (easy for me to say, right?) as this is a common condition for many Frenchie puppies which have just been placed in their new forever homes (although very few of the Frenchie puppies we have placed have shown any of these symptoms). All of our puppies have been given age appropriate vaccinations (at 5, 7, & 9 weeks of age, and at 12 weeks if you buy an older puppy), so their chance of having something serious like Parvo, Distemper, etc. is virtually zero, and our guarantee would cover this disease and others covered by their vaccinations if it were to ever occur in a puppy we place in its new home. Our puppies have also been given preventive medications for worms and Giardia (fenbendazole) and Coccidia (Albon) which can all cause the types of symptoms mentioned above. However, Frenchie puppies will often reinfect themselves, especially while living with their litter mates. If you see loose stool (possibly with blood or mucus in it), it will virtually always be coccidia &/or giardia, which can flare up when a puppy is under stress (i.e., shipping, a new home and environment, a diet change, new people and playmates, a change in climate, etc.). Rather than spending a lot of money on testing at the vets, we strongly recommend putting them on at least five days of fenbendazole (often marketed as Panacur or Safeguard) and a week or more of Albon (we like the liquid). These medications should take care of the problem. If it persists, your vet can provide stronger medications, but it is rarely necessary. Blood in the stool can also be brought on by a puppy eating something he/she should not have eaten, and Frenchie puppies are just like human babies – everything they find goes into their mouths. If fenbendazole and Albon do not start clearing up the problem in a few days, your vet should be consulted as it could be something else that is going on.