Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 2 months and 12 days old | 15 lbs
My 10 week old puppy got his 1rst Canine 5-in-1 (DA2HPPv) Vaccination, Diphenhydramine HCL Injection 50 mg/mL and Round/Hookworm Dewormer (Pyrantel Pamoate 50 mg/mL) yesterday noon and last night we noticed like a bump in his belly. And today its like open and has blood, its round and hard at the touch.
1 Answer
Published on April 12th, 2023
Hello, thank you for using Petco Pet Education Center, formerly Petcoach. This red bump is not related to the vaccination. It looks like some type of insect bite or wound. It is also possible that it could be a hernia or cyst. I think you should have this lump examined by your veterinarian.
2Pet Parents found this answer helpful
Book an appointment with the pros – our expert vets are here to help.