SURGERY – WARNING
Ever wondered what happens when a horse goes in for surgery? Join us for an inside look at the process.
Cryptorchidism (Retained Testicle) Cryptorchidism is a fairly common developmental condition in horses where one or both testicles fail to descend into the scrotum. During fetal development, the testes begin near the kidneys in the abdominal cavity. By the end of gestation, in a normal fetus, the testes descend into the scrotum through the inguinal canals. However, abnormal descent can lead to the retention of the testicle in either the abdominal cavity or the inguinal canal.
Case Study Today, we’re spotlighting a 2-year-old Thoroughbred/Riding Pony cross with cryptorchidism. Initially evaluated as a weanling, he presented with one descended testicle while the other remained in the abdomen. Because this issue sometimes resolves on its own, and the horse wasn’t displaying concerning behavior, he was monitored over time. By two years of age, it became clear the retained testicle would not descend, necessitating surgery for removal. Leaving a horse with cryptorchidism, often called a “rig,” is not recommended due to behavioral issues and the risk of the retained testicle becoming cancerous. Breeding such horses is also discouraged due to the suspected genetic influence on improper development and hormone secretion. If a stallion has one retained testicle, he is fertile. However, if both testicles are retained, he is sterile and unable to reproduce. This procedure was performed by specialist surgeon Dr. Tias Muurlink, supported by the skilled AEV veterinary and nursing team. It’s just one of many advanced surgeries offered at the AEV Clinic in Bundall. Stay tuned as we continue our Surgery Series! 🎥 Captured beautifully by Sam from Flash Pony
