. In this thread, i'd like to explain the history, currently-known risks, & the benefits of desex before puberty, & specifically before 12-WO / 3-MO - known as either pediatric or 'early' desex, as traditionally, S/N was performed around 6-MO, at puberty. Pediatric desex is now SOP [Standard Operating Procedure] in virtually all municipal shelters in the USA & Aus; also, 90% of U-S breed rescues & all-breed rescues desex every puppy or kitten B4 they're available for adoption. The few exceptions are either very-rural county shelters or disastrously underfunded urban shelters, & small-time rescues. The reason for this is simple: Adopters cannot be trusted to S/N their pets. Even after signing an adoption contract that stipulates their pet can be confiscated, plus they may face a fine or other charges, the average compliance rate for S/N of adopted intact pets in the USA is only 40% - less than half. // Promises don't mean diddly; if the pup or kit is already desexed, it's a done deal - no progeny will be produced by that F, & no litters will be sired by that M, if s/he's desexed prior to adoption. Early-adopting shelters were doing pediatric S/N in the early '70s, so there are plenty of studies on safety, outcomes, complications, risks specific to pediatric patients, etc - IOW, there's loads of data, as millions upon millions of pups & kittens have been desexed between 8 & 12-wks age over those 47 years. this is a 5-page article that explains the risks, benefits, AND the procedure itself, in detail - An overview of pediatric spay and neuter benefits and techniques it's intended for vets, but i think if U have a basic understanding of anatomy, U can understand the surgical procedure, or skip that part & just read the risk / benefit section. - terry .