Pet Health

Retained testicle (Cryptorchidism) in pets

Discover everything you need to know about retained testicle (cryptorchidism) in pets, its causes, symptoms, and treatment options for your furry friends.
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
Veterinarian examining a pet dog for cryptorchidism, highlighting a retained testicle during a routine health check.

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Have you ever noticed your male pet’s testicles seem uneven or that one hasn’t descended? It might seem like a minor issue, but this could be a condition called cryptorchidism, or retained testicle, which affects dogs and cats. While it might not seem urgent at first glance, it’s important to understand what this condition means for your pet’s health and what steps you should take next.

⚠️ What to Watch For

Cryptorchidism happens when one or both of a male pet’s testicles fail to descend into the scrotum. Normally, testicles should descend by the time your puppy or kitten is a few weeks old. If they remain undescended beyond six months of age, they are considered retained. Here’s what to look out for:

  • One or both testicles not visible or palpable in the scrotum
  • Swelling or lump in the groin or abdomen
  • Behavior changes, such as mounting or aggression (due to hormone imbalances)
  • In rare cases, signs of pain or discomfort

Even if your pet seems completely healthy otherwise, untreated cryptorchidism can lead to serious complications over time. Recognizing the signs early can make a big difference for your pet’s health and comfort.

🔍 Possible Causes

Cryptorchidism is primarily a genetic condition, meaning it can be passed down from parent to offspring. This is why responsible breeders often screen for this issue and avoid breeding affected animals. Certain breeds are more predisposed to the condition:

  • Dogs: Chihuahuas, Poodles, Yorkshire Terriers, German Shepherds, Dachshunds
  • Cats: Domestic shorthairs, although it is less common in cats overall

While genetics play a major role, other factors such as hormonal imbalances during fetal development or physical abnormalities can also contribute. Environmental influences, like exposure to endocrine-disrupting chemicals, may also play a role, though this is less understood.

✅ What You Can Do at Home

While you can’t “fix” cryptorchidism at home, there are steps you can take to support your pet until you can consult a veterinarian:

  • Monitor your pet’s behavior and health closely for any changes
  • Avoid breeding your pet to prevent passing on the genetic trait
  • Note the location of any lumps or swelling to share with your vet

It’s also a good idea to keep up with regular veterinary check-ups, especially when your pet is young, as your vet can detect cryptorchidism early and discuss treatment options with you.

💡 When to Call a Vet

If you suspect your pet has cryptorchidism, it’s important to consult your veterinarian promptly. This condition doesn’t resolve on its own and can lead to complications such as:

  • Testicular torsion, a painful condition where the retained testicle twists
  • Increased risk of testicular cancer (up to 10 times higher in retained testicles)
  • Hormonal imbalances causing behavioral issues

Your vet will likely recommend neutering as the best course of action. During the procedure, they’ll surgically remove the retained testicle(s), which eliminates the risk of cancer and other complications. In most cases, this is a safe and effective solution.

If your pet shows signs of pain, such as whining, licking at their groin, or a noticeable lump, don’t wait—contact your vet immediately. These could indicate complications that require urgent attention.

FAQs

Q: Is cryptorchidism painful for my pet?
A: In most cases, cryptorchidism isn’t painful, but it can lead to discomfort if complications like testicular torsion or cancer develop. Regular vet checks are key to preventing these issues.

Q: Can cryptorchid pets live normal lives?
A: Absolutely! With timely neutering and proper care, pets with cryptorchidism can live happy, healthy lives without any long-term problems.

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References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
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