Can Worms Cause Bloody Mucus Stools In Puppies?

Yes and this can be as simple as your puppy needs worming, often people don't follow the worming course instruction properly and although believe the pup has been treated for worms the truth is yes he has but not properly, They must have the correct dosage for as long as indicated . If this isn't the cause then it may well be a bacterial infection . Puppies will often eat all kinds of debris off the floor and chew things that go un-noticed which maybe causing the problem so look out for this also. If the pup or puppies are generally healthy in appearance and are active then I would try worm treatment first and see if the problem gets better in a few days , if not then you may want to consult your veterinary surgeon .

Yes it is possible that the de-worming medication caused the vomiting.  It did cause the worm in the stool.  The medication kills intestinal parasites then they are excreted from the body in the feces.  However if your dog continues vomiting have him examined by a veterinarian.  There are many other reasons a puppy vomits--some of them are serious.  If vomiting continues the medication could be misleading and it would be important to rule out other causes of vomiting.

Sure, though that's mainly sign of parasites which are treated with antibiotics. Can also be something like colitis, renal failure, or a bacterial or viral infection like parvo to name a few. You should see your vet tomorrow unless it seems like an emergency (severe or other symptoms or suspected parvo) in which case it would be today. Pup eating and drinking and playing normally? No vomiting or depression/lethargy? Not constant or heading towards dehydration (or already possibly there)?

You should have given following information in your question.

1. Is blood in stool red and fresh or of dark color?
2. Is blood occasional or consistent?

Occasional bloody stools in dogs indicate minor while persistent bloody stools indicate major problems. Serious problems is always suspected when dogs show following symptoms along with bloody stools.

1. Vomiting
2. Excessive water drinking
3. Loss of appetite
4. Loss of weight
5. Lethargy

Following is list of some factors and conditions that can cause bloody stools in dogs.

1. Intestinal parasites
2. Viral, bacterial and protozoan infection of GI tract
3. Colitis
4. Polyps in rectum and colon
5. Food allergy
6. Dietary intolerance
7. Diseases of rectum, colon and anus
8. Clotting disorders

Either your dog is getting infection again and again or you are not completing duration of treatment. You should take your dog to another vet and get advice from him.

It sounds like Parvo! My dog at 4 months had it as well as Pneumonia at the same time. They can live for 2 weeks without food, but must stay hydrated. Don't give it any food. Give it gatorade in a syringe every 30 minutes, day and night!!! After the bleeding stops, wait a few days and if it still isn't eating, get a few cans of potted meat and give in the syringe! If the diarrhea come back, Stop the food! The main thing is to keep the puppy HYDRATED!!! You can also buy small cans of predigested dog and cat food from your local vet. The cost is about $2.00 a can.

You need to call your vet and get in today. The stool is signs of internal bleeding somewhere. Bacterial or viral infection (like parvo), or something they ate that is causing internal damage are a couple of possibilities. Your vet will examine your pup and talk with you to begin to narrow down the posiibility's. Be sure to let them know if your pup recently got into anything or if you used any over the counter med's or de-wormer's or anything as well. Hope your pup is feeling better soon.

It could be purging the worm usually it comes out the other way

I haven't ever seen it come up that way but it is possible. My pups all have it the other way yes there was mucus and blood. Never seen a worm tho.

I would take it to the vet there is something wrong. Just like us that is not good at all.

He needs to get to a vet ASAP, he may have gotten into something poisonous, have parvo, have internal bleeding, etc, black stool is a sign of old blood. Best wishes.