My dog has a red lump on his genitals and hates the vet. What to do?
Updated On September 23rd, 2025
Pet's info: Dog | Pit Bull Terrier | Male | neutered | 70 lbs
My dog has a dark red lump growing on the side of his genitals...it just appeared within the last couple of days...not sure what to do my dog doesn't do very well at the vet so if their is any way you help identify what this could be and give advice that would be great ...thanks
2 Answers
Most Helpful Answer
Published on August 25th, 2017
Hello there and thank you for your post! From the pictures you have posted, it the red blood blister like mass you are seeing is most likely what we call a hemangioma, which is typically benign. However, hemangiomas can turn into hemangiosarcomas that are cancerous. I would recommend having this removed if possible to prevent this from progressing. If Gizmo does not do well at the vet, you can ask if they can provide you with an anti-anxiety medication / sedative to administer prior to an appointment to get this looked at. I hope this helps! Please let me know if you have any other questions or concerns. I am also available via consultation if needed.
2Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on March 8th, 2019
Lesions like this should be checked out by the veterinarian. It sounds like the mass has been around for a while which is unusual. It could signify a skin tumor, a foreign body stuck under the skin, allergies or an abnormal hair follicle/pore. If it is a mass, the doctor will need to test it. Blister type masses are usually benign in a young dog but they can be a cancerous tumor called a mast cell tumor. these types of tumors need to be removed quickly. It’s always better to play it safe. I hope this helps and please feel free to post any additional questions.
1Pet Parents found this answer helpful
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