Cryptorchidism
Article
Cryptorchid Colt, Missing Equipment?
February 01, 2011
My newborn colt's testicles and umbilicus are set way back and the veterinarian can't feel the foal's penis. ... Read More
Article
Urine Test Might Diagnose Young Cryptorchid Horses
December 26, 2009
A simple, noninvasive urine test to diagnose cryptorchidism in horses that appear to have been castrated has been developed by a group of researchers from the Racing Laboratory at the Hong Kong Jockey Club. Male horses that appear or... Read More
Article
Cryptorchid Concerns
September 01, 2009
I have a 24-month-old Azteca colt that has dropped only one testicle so far.... Read More
Article
Unilateral Castration in Horses Contraindicated and Costly
September 29, 2007
Unilaterally castrating horses (removing only one testicle), often as a result of failure to identify cryptorchidism prior to commencing a surgical castration, is an expensive and unethical procedure that continues to occur too frequently,... Read More
Article
Hormones to Treat Cryptorchids
July 08, 2007
While giving hormones to colts might seem like a method of self-destruction, there really is a reason for it in some cases--such as for cryptorchids. These colts have at least one testicle that hasn't descended into the scrotum; normally... Read More
Article
Cryptorchidism in Horses
May 01, 2007
Cryptorchidism is a congenital condition (i.e., the individual is born with it) in which one (unilateral) or both (bilateral) of the testes fail to descend into the scrotum. A number of common terms have been used to describe cryptorchids,... Read More
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Repro Updates
March 23, 2007
Equine reproduction was covered at the 2006 AAEP Convention including foaling, venereal disease, breeding, etc... Read More
Article
Reproduction Problems
March 01, 2007
Drug compounding, the ethics of treating cryptorchids, and sexually transmitted diseases were the hot topics discussed by equine practitioners at the Reproduction Forum.... Read More
Article
A True Gelding? (Book Excerpt)
July 19, 2006
Many geldings also retain this stallion-like tendency to defecate and urinate in an organized fashion, in one to three places rather than randomly. So, as with the grasping and holding behavior, it is difficult to differentiate a cryptorchid from... Read More
Article
Greater Good Listed a Colt, But Unable to Breed
March 25, 2005
Should Greater Good win the May 7 Kentucky Derby (gr. I), it would make the second time in the past three years the winner cannot stand at stud. Funny Cide, who won the 2003 Derby, is a gelding. Greater Good is listed as a colt but... Read More
Article
Surgery to Address Roman Ruler's Ridgling Condition
November 05, 2004
Fog City Stable's Thoroughbred Roman Ruler, fifth as the 2-1 favorite in the Bessemer Trust Juvenile (gr. I) at Lone Star Park on Oct. 30, is scheduled to undergo surgery Nov. 7 to remove an undescended testicle. "He's a cryptorchid... Read More
Article
Cryptorchidectomy Surgery
August 01, 2004
My stallion is going in for a cryptorchidectomy surgery (removal of a retained testicle). He has never bred any mares and is well behaved. This spring, his testicle started swelling on hot days and my veterinarian recommended the surgery. What is...... Read More
Article
Stallion or Gelding?
July 01, 2004
A cryptorchid, also called a ridgling, is a male horse in which one or both testicles do not descend into the scrotum. In the developing fetus, the testicles are formed within the abdomen. As the fetus nears term, the inguinal rings and inguinal... Read More
Article
Castration In The Horse
April 01, 2001
Becoming educated on the entire process of castrating horses can only help you make decisions that are best for your horse. Castration has been used to control masculine/aggressive behavior in the male horse for hundreds of years. In medieval... Read More
Article
Cryptorchid Surgery
September 01, 1999
It’s time to have your young colt gelded, so you make an appointment with your veterinarian. He arrives on the designated day and examines the colt prior to the surgery, then informs you that your colt is a bilateral cryptorchid and will need... Read More
Article
Testicular Descent
April 01, 1999
A discussion of cryptorchidism in young stallions is fraught with controversy. Everyone agrees on what constitutes cryptorchidism, but that sometimes is as far as agreement goes. We know that the condition involves the retention of one or both... Read More
Article
Stallion Anatomy and Physiology
December 01, 1996
Breeding horses is a precarious business at best. Despite great strides in research, conception rates overall are not high. Some researchers place them as low as 55-60% of all mares bred. In many cases, blame is placed on the mare. Sh... Read More
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Farm Call: Your Questions Answered
Cryptorchid Colt, Missing Equipment?
Q. Q: My mare foaled recently and the colt's testicles and umbilicus are set way back between the hind legs, more than normal. The veterinarian checked him and said he can't feel the penis. He has not seen anything like this before. Any ideas where I could find information about this condition?
Cryptorchid Concerns
Q. I have a 24-month-old Azteca colt that has dropped only one testicle so far. He had two normal-appearing testicles at birth, and both of them withdrew above the inguinal ring before he was a year old. Do you believe cryptorchidism is hereditary?
Cryptorchidectomy Surgery
Q. My stallion is going in for a cryptorchidectomy surgery (removal of a retained testicle). He has never bred any mares and is well behaved. This spring, his testicle started swelling on hot days and my veterinarian recommended the surgery. What is the expected recovery time and how long do I need to wait until I can turn him out with mares?








