My 5-month-old bulldog has a red sore on his underbelly. What is it?

Hi there and thanks for posting on Petco Pet Education Center, formerly Petcoach! This does look red and inflamed. It may be a insect bite or an infected hair follicle. I would recommend Oscar be seen by his veterinarian to have this evaluated further. He may need topical or oral antibiotics or other medications as needed. I hope this helps!

Thanks for using Petco Pet Education Center, formerly Petcoach! This is likely a focal infection or superficial pyoderma. You can try to use a medicated shampoo containing chlorhexidine twice weekly for 2 weeks. If there is no improvement or in the meantime this appears to be getting worse, have him evaluated by a veterinarian for further assessment and treatment. Good luck and have a good day!

Thank you for using Petco Pet Education Center, formerly Petcoach! It looks like the sore is around the last nipple - it looks red, round and flat. It is concerning that the sore is so red, as this may be a sign of an infection or a tumor. I recommend having Ashton looked at by a vet soon, especially if the area is bothering Ashton, or bleeding/having discharge. Your vet can take small samples from the skin to determine exactly what is going on. I hope this helps!

Thanks for using Petco Pet Education Center, formerly Petcoach! This looks like a focal infection. You can try to use a medicated shampoo containing chlorhexidine twice weekly for 2 weeks. If there is no improvement or in the meantime this appears to be getting worse, have her evaluated by a veterinarian for further assessment and treatment. Good luck and have a good night!

Thanks for using Petco Pet Education Center, formerly Petcoach! This could potentially be an abscess. I would highly recommend that you have him evaluated by your veterinarian for further assessment and treatment. This is usually treated with local therapy with drainage, flushing and and debridement as well as systemic antibiotics. Good luck and have a good day!

Thanks for using Petco Pet Education Center, formerly Petcoach! This looks like a focal infection though an examination is needed to know. You can try to use a medicated shampoo containing chlorhexidine twice weekly for 2 weeks. If there is no improvement or in the meantime this appears to be getting worse, have her evaluated by a veterinarian for further assessment and treatment. It may be the picture but I am concerned that there may be also a lump as well. If that is the case, that should be evaluated to know if it is actually a growth. Good luck and have a good night!

Thanks for using Petco Pet Education Center, formerly Petcoach! This looks like a focal infection. You can try to use a medicated shampoo containing chlorhexidine twice weekly for 2 weeks. If there is no improvement or in the meantime this appears to be getting worse, have her evaluated by a veterinarian for further assessment and treatment. Good luck and have a good day!