My dog has a lump on his neck that burst overnight. What should I do?

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing for sure without an examination though this represents a reason to seek veterinary care. This is usually determined with an examination and a fine needle aspirate (FNA) or a biopsy. Treatment depends on the findings up to that point. I recommend you have Gunnar evaluated by a veterinarian for further assessment and treatment. Good luck and have a good night!

This appears to be a large, infected mass. You will need to take Roscoe to the vet as soon as possible. Your vet will likely recommend surgery to remove the mass and antibiotics to help the infection clear up. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. There is no way of knowing for sure without an examination though this represents a reason to seek veterinary care. This is usually determined with an examination and a fine needle aspirate (FNA) or a biopsy. Treatment depends on the findings up to that point. I recommend you have Lucy evaluated by a veterinarian for further assessment and treatment. Good luck and have a good night!

I think this is not an emergency and can wait to be seen tomorrow. The only thing that may happen is that this abscess bursts until then. If that happens, gently wipe off the pus, do not flush or put ointment on the wound, leave it as it is. It is likely painful at the moment, but once the abscess bursts the pain will be over. Your vet will lance and flush the abscess and prescribe an antibiotic if needed.

There could be a few things that look like that. An infection that ruptured through the skin, a bite wound, a fly larva or a cyst that popped could all have this appearance. I would recommend to take Pepper into the vet within the next 24 hours to have an exam and likely antibiotics. Make sure to protect the area from Pepper licking it or scratching it as this will make it worse. Also make sure to clip the hair short and wash it with an antibacterial soap! I hope this helps!

Unfortunately, even in person I would be hard pressed to give you a diagnosis based only on appearance. When a client comes in with a pet that has an unknown mass, we typically consider the following as possibilities, taking many factors into account: a mass/tumor, an abscess, a cystic structure, an insect bite, an allergic reaction, or a bruise from trauma. If the structure has burst open, it is most likely not allergic or from an insect. Depending upon your dog's age, the time the lump has existed, the consistency of the fluid you have noted, and the presence / absence of any other clinical signs, one of the other options is most likely. Something the vet might be able to do is obtain some cellular material from the affected area, place it under a microscope, and see if there is any cellular material that is useful in obtaining a diagnosis. Other times, appearance alone can at least tell a vet whether or not there is an active infection. As far as the possibility of cancer, tumors are certainly able to open up as you have described. They are typically more common in elderly dogs, though even this is largely dependent on the type of tumor. I would schedule a visit with your vet sometime soon. I would also in the meantime prevent Pancakes from bothering with the area. You can either buy an e-collar from a store / vet, or try and make something homemade until a commercial one can be obtained (with it being Easter, finding a store open that has one may prove difficult). The purpose of this is to prevent any current infection from worsening, or absent infection from beginning. Hope this makes sense.

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Lockjaw. I'm wondering if that area is an abscess that has now ruptured. It doesn't look great, but if he is eating and drinking, he does not have a fever, and the area isn't hot, you can wait until tomorrow morning to have him seen by his vet. If the area becomes hot, he gets a fever, or he stops eating or drinking, have him seen by an ER vet right away. I hope this helps!