TL;DR: Cryptorchidism is a condition where a dog's testicles fail to descend into the scrotum, requiring elective neutering to prevent serious risks like cancer and testicular torsion.
What is cryptorchidism and how does it affect my dog?
Cryptorchidism is a condition where one or both of a dog's testicles fail to descend into the scrotum. In most puppies, the testicles should be in their permanent position by two months of age. If they have not descended by six months, the condition is considered permanent. The testicle may be located inside the abdomen or in the inguinal canal (the groin area).
Is a retained testicle considered a medical emergency for my pet?
- Urgency Level: Low.
- A retained testicle is not a medical emergency and does not cause immediate pain.
- It is a health concern that must be addressed through elective surgery.
- Retained testicles are at a significantly higher risk for developing malignant tumors (cancer).
- Dogs with this condition are at risk for testicular torsion, a rare but painful complication.
- Neutering is the recommended treatment to prevent these future health issues.
How does sending a photo of my dog's groin area help with triage?
- Providing a clear photo of your dog's scrotal and groin area is highly beneficial for virtual consultations.
- Visual assessments allow the vet to check for swelling, redness, or scrotal asymmetry.
- Photos help determine if the testicle is located in the groin or hidden deeper within the abdomen.
- This information helps the veterinary team plan the appropriate surgical approach.
Clinical Context (Merck Veterinary Manual)
Cryptorchidism, the failure of one or both testicles to descend into the scrotum, is a common disorder in dogs, with testicles normally descending by 6-16 weeks of age, although descent as late as 10 months has been documented. It is caused by a combination of genetic, epigenetic, and environmental factors and is considered hereditary; affected animals should not be bred, implicating both parents as carriers. While unilateral cryptorchidism usually does not result in infertility, bilateral cryptorchidism leads to sterility. The undescended testicle may be located anywhere from just caudal to the kidney to within the inguinal canal, identifiable via ultrasonography, and produces male hormones, resulting in normal secondary sex characteristics and mating behavior. Due to the increased risk of neoplasia and torsion, bilateral orchiectomy is recommended. Medical attempts to induce descent with gonadotropins or testosterone and orchiopexy are considered unethical.
Chapter: Reproduction, Surgery, Congenital
Source: The Merck Veterinary Manual, 11th Edition (Page 2220)