My senior dog is lethargic, hungry, and biting fur after castration.

Hello! Those lesions could be caused by an infection like bacteria or even fungus as well as allergies. Usually though mild infections and allergies don't cause dogs to be depressed/act abnormally. If his behavior continues, he has any vomiting, or his food/water intake goes down further I recommend having your veterinarian do an exam as those changes could be caused by something more serious, like liver issues, anemia, an infection or even cancer.

Hair loss and increased appetite are common causes of an endocrine disorder called Cushings disease. This is a common problem in older dogs and they usually are drinking more water then normal as well. I would highly encourage you to consider having Diamon evaluated by a veterinarian soon. They may recommend blood work to help determine the diagnosis. Best of luck and thank you for using Pet Coach.

Hi there. Jack may be suffering from allergies. Allergies can be due to food and environmental allergens, so he does not have to be infested with fleas to be itchy. He could also be having problems with his anal glands or biting at himself because of pain. I recommend taking him to the veterinarian so he can get a full check up. The vet will probably be able to give you some medications or recommendations to help Jack feel better. Hope this helps!

Hello, and thank you for your question. I'm sorry to hear that Fender is not doing well after his surgery. From the photo, it looks like the incision is healing well but he has been licking the scrotum raw, and I am worried that part may be infected. I also worry that he is in pain from the surgery. Was he sent home with any pain medications? Even if he was, I would recommend having him re-evaluated by the vet today as he may need additional, or different pain medications. He may also need antibiotics. Please also put an e-collar (cone) on his head to prevent him from further licking the area. This should be worn continuously for at least 10 days after surgery to help the healing process. I hope this helps, and that Fender improves soon!

Hi, and thanks for your question. This lump/bump/growth should be ideally examined by your local vet to have a diagnosis established. Your vet may want to perform an FNA (fine needle aspiration) or a biopsy to sample the bump and determine its underlying nature. Differentials would include skin cysts, infections, benign or more malignant type of tumors. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

This could suggest a recurrence if the cancer or of a different kind of cancer. This would not necessarily be seen on bloodwork. I would suggest you have your vet perform imaging or possibly a CT scan to rule out any cancerous masses. In the meanwhile antibiotic therapy may be warranted to prevent infection of the wounds.

Bleeding from the penis can have various causes: Xander could be suffering from a UTI, an inflammation of the prostate, penis or prepuce or a tumor. Since he is not eating and lethargic it is likely something that causes him pain and he may have a fever. You can carefully push back his prepuce (foreskin) and then inspect his penis for injuries or growths, or to see where exactly he was bleeding from or is still bleeding from. If he is still bleeding you should take him to an emergency room this evening. If it stopped bleeding but he stays lethargic or will not eat his breakfast tomorrow morning or if you find injuries on the penis , then you should call your vet for an appointment.