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Gregg Miller with his dog Buck the bloodhound, the inspiration for Neuticles

Neuticles are prosthetic testicular implants for neutered dogs and other domestic animals.[1] The implants may be made of polypropylene or silicone.[2]


Gregg Miller developed the idea for Neuticles after his bloodhound, Buck, was castrated to stop his wandering.[3] Miller, along with a veterinarian, patented the procedure for implanting Neuticles.[4] To sell his idea, Miller established CTI (Canine Testicular Implant) Corporation,[3] and the first commercial Neuticles were implanted in 1995.[1] Miller won the 2005 Ig Nobel Prize in Medicine, a parody of the real Nobel Prize, for the invention of Neuticles.[5][6]

While recognizing that responsible pet ownership requires neutering, nonetheless, many pet owners find themselves uncomfortable with such a disfiguring procedure. The permanently altered appearance of their pet serves as a constant reminder of their surgical choice. Comments by strangers who misidentify the gender of the pet may serve to exacerbate this discomfort.

— US Patent 5868140A[7]

The company states that humans cannot legally get Neuticles; while the materials in them are approved by the FDA, a second approval is required for similar implants in any specific areas of the human body.[8] In 2018 it was reported that Miller has no plans for Neuticles for humans due to the cost and the time needed for FDA approval.[9]


In the UK, the regulatory body for veterinarians, the Royal College of Veterinary Surgeons, states that the use of any form of cosmetic surgery is unethical.[10]

The Veterinary Council of New Zealand says "the insertion of neuticles (prosthetic testicles) cannot be justified. This procedure has no benefit to the animal and can be used to conceal genetic defects."[11]

Popular culture[edit]

  • On the reality television show Keeping Up with the Kardashians, Kim Kardashian's dog, Rocky, was given Neuticles.[12][13]
  • On Season 2, Episode 10 “High School Reunion” of the television comedy The League, Kevin publishes in the group's high school reunion program that Andre had a “nudicle” inserted after he was “sack-tapped so hard that my left testicle was damaged and eventually had to be removed.”[citation needed]
  • On Season 2, Episode 7 "Who's the Boss?" of the adult animated TV show HouseBroken, one episode revolves around the character Diablo getting a pair of canine testicular implants called "Fauxnads"


  1. ^ a b Anthes, Emily (2013). "Chapter 6: Pin the tail on the donkey". Frankenstein's Cat. Oneworld Publications. pp. 132–134. ISBN 9781780742168.
  2. ^ Martin, Douglas (8 August 1999). "If dogs could talk, they'd say, 'Are you crazy?'". The New York Times. Retrieved 2018-01-20.
  3. ^ a b Sparks, J.D. (30 October 2003). "Vanity plates". Houston Press. Retrieved 2018-01-20.
  4. ^ Fernandez, Don (16 March 1997). "Has Fido lost his, um, doghood? Here's help". Orlando Sentinel. Retrieved 2017-01-20.
  5. ^ "Penguin poo wins Ig Nobel prize". BBC News. 7 October 2005. Retrieved 2018-01-20.
  6. ^ "Man wins award for creating fake dog testicles". Fox News. Associated Press. 6 October 2005. Retrieved 2018-01-20.
  7. ^ US 5868140A, Miller, Greg A. & Holder, R. Duane, "Surgical method and apparatus for implantation of a testicular prosthetic device", issued 9 February 1999, assigned to CTI Corp. 
  8. ^ "FAQ - Neuticles". Neuticles. Retrieved 1 June 2021.
  9. ^ Wells, Jane (23 May 2018). "Fake dog testicles made this man a millionaire". CNBC Make It. Retrieved 2 June 2021.
  10. ^ "Code of Professional Conduct for Veterinary Surgeons - 27. Miscellaneous procedures: legal and ethical considerations - Prosthetic testicles". Royal College of Veterinary Surgeons. 6 September 2018. Retrieved 2018-09-06.
  11. ^ "Code of Professional Conduct: Animal Welfare Section (Explanatory Notes)". Veterinary Council of New Zealand. Archived from the original on 22 February 2018. Retrieved 23 April 2018.
  12. ^ Campbell, Andy (25 April 2013). "Neuticles: dogs 'need' testicle implants, says inventor". Huffington Post. Retrieved 2018-01-20.
  13. ^ Tyrrel, Rebecca (5 October 2012). "When Kim Kardashian had her dog castrated, she replaced the orbs with fakes". The Independent. Archived from the original on 2022-06-18. Retrieved 2018-04-01.

External links[edit]

  • Neuticles web site
  • US 5868140A, Miller, Gregg A. & Holder, R. Duane, "Surgical method and apparatus for implantation of a testicular prosthetic device", issued 9 February 1999, assigned to CTI Corp