My dog has an odd bleeding lump on his penis. Is it cancerous?

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing what it is just based on its appearance. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. This is not going to away on its own and needs attention. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good day!

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Thanks for the pictures! Many skin masses can look the same. Red dermal masses, like this one, can be benign or malignant. Some possibilities are an inflamed sebaceous adenoma, hemangioma, histiocytoma or it could be a Mast Cell Tumor. Since it showed up quickly I would have Oscar seen by your Vet. They can decide if aspirating it (sticking it with a needle and sending the slides to the lab) or removing the mass and sending it for biopsy is best. I hope this helps and I wish you and Oscar the best!

I recommend making an appointment to have Odin seen by your veterinarian. This could be a growth/mass or an infection/ abscess, and it important to have it checked and treated so that it doesn't start to spread or cause discomfort.

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Dexter. I agree, that is concerning that this hard lump is now bleeding, and this lump could be something serious. It could be a hemangiosarcoma (malignant) or hermangioma (benign), which are tumors that develop from blood vessels and look like a blood blister. Given his age, there is a chance it could be another type of malignant tumor, like a mast cell tumor, but it could also be benign. Unfortunately without seeing him in person, I cannot say for certain. Any suspicious lumps should be examined by the vet. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of its cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the cause of the lump is diagnosed, the vet can discuss treatment options if needed. Give his vet a call to make him an appointment. I hope this helps!

Please keep in mind that without seeing it in person or even a picture, I can't say if Luna has a wart or not. It certainly is possible that she does have a wart, but it could be another kind of benign tumor. I would have her seen by a vet for it. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of it's cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. If it is a wart, typically it doesn't need to be removed surgically unless it's bothering her. You can talk to the vet about if it needs to be removed or not. I hope this helps!

In a dog Rugz's age, yes there is a chance this could be cancerous. Any suspicious lumps should be examined by the vet. The vet can perform a test called a fine needle aspirate on it. To do this, the vet sticks a small needle into the lump to get a sample of its cells, and examines the cells on a slide under a microscope. It's usually painless to the animal, and relatively quick to perform. Once the cause of the lump is diagnosed, the vet can discuss treatment options if needed. Give his vet a call to make him an appointment.

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Piper! The only way we can 100% know for sure a mass isn't cancerous is by either aspirating the mass with a needle or biopsying it. When a mass changes I always recommend that the animal be seen by their Vet to have it checked. The fact the mass opened up dictates the need to have it looked at and a minimum of antibiotics started. Hopefully it is just a ruptured follicular cyst that is infected. But I think you should have the mass removed and biopsied. I am afraid it will not heal well and continually leak bloody fluid. I hope this helps and I wish Piper the best!