There can be lots of reasons for that. It means your pup needs to see the vet. It could be something like bacterial or viral infection like parvo, a sign of poisoning, a parasite, colitis or some other gastrointestinal issue to name a few, it could be something else.
Your vet will have a better idea of what it may be and what needs to be done for your pup once they are able to do an exam and talk to you about everything. Hope your baby is feeling better soon.
Your vet will have a better idea of what it may be and what needs to be done for your pup once they are able to do an exam and talk to you about everything. Hope your baby is feeling better soon.