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Why is my puppy itching, balding, not eating, and has bloody stool?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | unspayed | 3 months and 21 days old | 25 lbs

My puppy is around 4 months old , her name is kanga, when I first got her she had roundwotms really bad , she was only a pound and really sick , she had blood in her stool and was throwing up when I took her to the vet they told me it was parvo and worms. I give her dewormer and she A normal puppy. But I brought another pup into my home& kanga has developed scabbing and balding around her eye& mouth,won't stop itching,threw up once and there is blood in her stool again&she doesn't want to eat.

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1 Answer

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Answered By Stacey Anstaett, DVM

Veterinarian

Published on July 1st, 2018

What a sweet face! I'm sorry that Kanga isn't feeling well. Ideally, get her to a vet. When there is blood in the stool that is always cause for concern. Take a stool sample in as well; its possible she has picked something up from the new pup, and/or is stressed from the new dog and that may be contributing to the blood in the stool. You can deworm every 2 weeks until 6 months of age, and this would be a wise approach with Kanga as well as the new dog. Be sure to use a monthly flea medication as well; that may be part of her itching. Mange would be a possible cause of the itching and hair loss. There are 2 types of mange in dogs. #1 ) Demodectic mange- is not uncommon in puppies, and is not contagious from dog to dog. Typically not itchy. #2) Sarcoptic mange - very itchy, very contagious, not age specific. She could also have an allergy, or an infection in her skin. Your vet may recommend doing a "skin scraping" to look for mites, or an impression smear (where a glass slide is pushed against the skin and looked at under a microscope) to determine the best treatment for the skin. My biggest concern for Kanga, though, is the GI troubles you are describing, with her having vomited and now having bloody stools. If she did have Parvo already, she will NOT get Parvo again. However, there are many other possible causes for gastroenteritis (inflammation of the GI tract) including: *worms, *protozoal parasites such as coccidia, *other viral causes such as coronavirus, *a bacterial imbalance which may be stress related, * dietary indiscretion (meaning a dog is eating mulch, trash, dead bunnies, etc) She could also potentially have a foreign body ( a rock, stuffing from a toy or bed, a bone, etc) that is causing a blockage in her intestine leading to the vomiting and diarrhea. Especially since you've got at least 2 problems here, (the skin and the GI symptoms), a visit to your vet is definitely indicated. You can try feeding a bland diet of plain cooked chicken and white rice, and deworm her and apply a topical flea medication such as Frontline, while you are waiting to get her in at the vet; but get her in as soon as you can. I hope that helps you! Good luck with Kanga!

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