Why is my male cat's testicle red, hairless, and oozing pus?

Poor Ninja. This sounds like she has an abscess (pus filled pocket just underneath the skin) that has ruptured. These are caused by trauma to the skin. I would not attempt to treat this at home because honestly most cats won't tolerate you flushing this out with an antiseptic, and you cannot get her on antibiotics without a prescription through the vet. Perhaps you can convince your folks that Ninja is in need of medical care to properly treat this before it gets any worse, which could potentially require further, more expensive treatment. These are relatively easy to treat if done quickly and Ninja could be on her way to a potentially full recovery within a week's time (on average). If you cannot get her in to the vet until Monday, then you can attempt to flush the wound with Betadine diluted 50:50 with warm water using a syringe or Pediatric bulb syringe. I hope that your folks can see the need for Ninja to see a vet, and she gets the care she needs soon. Best of luck!

Yes, I agree that the scrotum appears to be red/irritated. I would not be overly worried at this stage. I don't think it is anything serious but he definitely needs to be seen by your vet. It looks like it may be a superficial skin infection.

It looks like there is possibly an abscess that is about to rupture. If there is an abscess (pus pocket), then if you warm compress it for 5-10 minutes several times a day then it may drain soon, which will make him feel better. However, if it doesn’t drain or the swelling doesn’t improve in the next day or two then he should be seen again. Best of luck and I hope he improves soon. Thank you for using Pet Coach.

Hello and thank you for contacting Petco Pet Education Center, formerly Petcoach. Unfortunately, it is very difficult to say what is going on from the attached pictures. It looks like some form of trauma or infected wound. You can try and clean it twice a day with 4% chlorhexidine solution (available at pharmacies). However, if the testicle is swollen or is painful to Batman, you should take him to your local vets for an appointment.

It would be hard to determine what the growth is without having it examined by a vet. Infections such as abscesses often are hot to the touch, painful, swell rapidly and may ooze debris from them if they pop open. Tumors and other growths may have different rates of growth and may or may not be bothersome to your cat. It is best to bring him into your vet to have the area looked at, and it may be drained or aspirated to take a sample for sending off to the lab. If the area is an infection, it can be drained and antibiotics given to prevent its return. Until you can get to the vet it is best to not allow your cat to lick or chew at the area with the use of a T-shirt or Elizabethan (cone) collar so that bacteria or a secondary infection are not introduced.

Even though a picture would help to understand better the underlying cause, This presentation could be due to a trauma or localized spot of skin infection (likely to be caused by bacteria). A check up, appropriate disinfection and possibly antibiotics (oral, topical or in a shampoo formulation) are needed to solve the problem. Disinfection may be started at home with very diluted hibiscrub or betadine or salted water baths. Buster collar may be useful as well to avoid any licking (if any). The different problems may be all related to a neurological disease affecting back legs and anal/perianal nerves. Diarrhoea can be caused by the lack of control over bowel transit.

When a cat licks or chews his testicles it is usually because they either itch or hurt So there is a possibility that he has a testicular inflammation (orchitis), or an infection. You should keep him from licking his testicles (best by putting an e-collar around his neck so he cannot reach his testicles) nd make an appointment with your veterinarian for an exam. This may be quite painful and he will likely need pain medicine and antibiotics to clear this up.