My 1-month-old puppy has live worms and black poop. Is it serious?
I recommend you take your puppies to the vet, along with a sample of their feces so the vet can run a fecal test if they so choose. Your puppies need regular deworming, as infestations of worms can make them very sick, and severe infections can be deadly. Worms in the stool (dead or alive) are cause for concern, and some types of worms can even be transmitted from dogs to humans and make them sick. Black stool may indicate blood, which requires treatment by your vet. The link below contains information on roundworms, and there are links to information on hookworms, whipworms and tapeworms within the body of the text. https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4951364 . Good luck, and I hope your puppies feel better soon!
Updated on September 23rd, 2025