Why is my unaltered dog's testicle swollen, hard, and discolored?

Swollen testicle can be due to torsion, allergic reaction or infection. i would recommend having it checked by your vet ASAP, if the swelling is too large you will need to take him to the emergencies if your vet is not open today.

Unfortunately it's impossible to say without being able to examine Bruno in person. A testicular tumor could swell and cause an increase in size that could resolves with an antibiotic or steroid injection. Infections like Brucella or other bacteria could cause testicular swelling. I would recommend having a veterinarian examine Bruno to determine what might be the cause.

In a dog Buster's age, this swelling could be due to a tumor. It could also be due to an infection. The only way to know what is causing this is to have him seen by a vet. I'd take him into one in the morning.

I see that your dog is unneutered - one condition that can come on suddenly and be extremely painful is called testicular torsion. Basically, one of the testicles becomes twisted inside the scrotal sac, cutting off the blood supply and causing swelling and intense pain. Based on your description, I would be concerned about this possibility and would recommend getting your dog to a vet as soon as possible, since he is in a lot of distress and there is really nothing that can be done at home to help. Other possibilities would include a scrotal or testicular infection, a tumor, or even a scrotal hernia.

That is abnormal. He could have an infection or mass in the testicle. I recommend neutering him and sending the abnormal testicle for a biopsy to determine the diagnosis. This should not be related to the bladder stones. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Boi.

Thanks for using Petco Pet Education Center, formerly Petcoach! I’m sorry to hear Cutler isn’t feeling well. Without seeing him it’s very hard to say what’s going on and how to treat him. I do recommend he is seen by a vet to determine what’s going on. Being an older, intact male, I would be worried about something going on in his testicles or prostate. In the meantime, you could try applying a cold compress to his scrotum for 10-15 minutes a few times today to see if that helps with the swelling. After 24 hours, I would switch to a warm compress (not hot). If that doesn’t improve, I would recommend an exam. Good luck and kisses to Cutler!

Thanks for using Petco Pet Education Center, formerly Petcoach! I am worried about this. I would advise that you go ahead and give a dose of the Benedryl and then get him into the vet as soon as possible- tonight with the ER vet is ideal. This could signal an allergic reaction, or a viral/bacterial infection. But I am most worried about something extremely painful such as a testicular torsion (where the testicle twists on itself, cutting of blood flow and causing swelling). If you can’t get to the vet tonight, ice the testicle for 5-10 minutes every 2-64hours to help with pain and swelling. Place a paper towel or thin cloth between the ice pack and his scrotum. Best wishes to you and Boi!