Why is my dog's skin lump ruptured? What are the possible causes?

Hi there and thank you for using pet coach to address your concern. What i am seeing in the pictures is likely a sebaceous cyst that ruptured. These are common with older dogs and are benign. When these rupture there is a chance they will become infected so the best treatment is to have it removed to prevent this from happening. I would recommend consulting with your veterinarian about having this removed. I hope this helps! Please let me know if you have any other questions or concerns.

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach! From the pictures, it appears as though this is a cyst. I would clean this using a combined solution of water and betadine (mix until light brown) and keep the area clean. The cyst will likely close back up now that it has ruptured. If it continues to drain material or becomes infected, then I would have a veterinarian take a look at this and plan to have it removed. I hope this helps! Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

This looks like it could be a cyst or a skin tumor like a hemangioma. I find that once a skin growth ruptures it tends to happen again, so I would definitely recommend making an appointment to see your veterinarian. They will probably recommend surgically removing this growth.

Hello and thank you for contacting Petco Pet Education Center, formerly Petcoach. I suspect this is a granuloma or a skin mass. A visit at your local vets is recommended to make the definite diagnosis and to start treatment for your dog. Your vet may have to take a needle aspirate from the lump to find out what kind of growth it is. Alternatively, treatment with steroids and antiseptic solution could be trialed first. If the growth responds to the treatment, it would strongly point towards the diagnosis of granuloma.

It would be helpful to see a picture of the lesion (you can submit photos by selecting "consult online" below your answer), but without seeing it I'd say that it could be a rupturing cyst, a foreign body (depends on where on the body it is - very common on the feet), or a tumor (mast cell tumors can get inflamed and scab over - histiocytomas do as well). If it's been there a couple of weeks, it's probably time to have it looked at in order to figure out exactly what it is. Bulldogs are prone to mast cell tumors, and they can be quite serious if not removed.

This may be an abscesses, cysts or tumors. You should have them examined by your veterinarian. An abscess can usually be treated with antibiotics and/or be lanced, and a cyst can be evacuated. To identify a tumor, your vet may want to do a fine needle aspirate (he takes some material from the bump with a needle and then looks at it under the microscope) to determine whether the mass is concerning.

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Possible causes are a skin infection from either yeast or bacteria or even both, demodex or even rignworm. Sadly they can all look like this. I would take Ace to the Vet and have his skin looked at. A skin infection tends to be easy to diagnose visually. Demodex requires a skin scrape and ringworm is a fungus that needs to be cultured. I wish Ace a speedy recovery!