Pets
“A new 2026 study published in the peer-reviewed Journal of Veterinary Internal Medicine found that neutered male Golden Retrievers had 157% higher odds of idiopathic epilepsy compared with intact males." (Accompanying post text: "359% HIGHER ODDS: Neutered males compared with intact females," "SPAYED FEMALES: No statistically significant…”
Plain restatementA 2026 study of 743 Golden Retrievers in the Journal of Veterinary Internal Medicine reported that neutered males had about 2.57 times the odds of idiopathic epilepsy of intact males, and about 4.59 times the odds of intact females, with no significant increase for spayed females.
General information only - not veterinary advice.
There is a real study behind this post. It was published in the Journal of Veterinary Internal Medicine on 10 October 2026 and looked at 743 Golden Retrievers in Sweden, 29 of which had idiopathic epilepsy. Neutered males were indeed more common among the dogs with epilepsy than among the dogs without, but a report of the study says the comparison between neutered and intact males did not quite reach statistical significance, and the post presents that figure right next to a female result it labels as not significant, which leaves the wrong impression. The number rests on just nine neutered males with epilepsy, so the uncertainty around it is large, and a study of this design can show which things occurred together but not that neutering caused the seizures. The claim that all nine were neutered before their first seizure shows only the order of events, and male dogs are usually neutered before the age when seizures in this breed typically start. The figures come from Swedish dogs and the report of the study warns against applying its prevalence number to the breed worldwide. The DOI printed on the post did not lead to any record, and the exact odds figures could not be checked against the paper itself.
A [drifted from the evidence:] new 2026 study [drifted from the evidence:] published in the [drifted from the evidence:] peer-reviewed Journal of Veterinary Internal Medicine [drifted from the evidence:] found that neutered [drifted from the evidence:] male Golden Retrievers had [drifted from the evidence:] 157% higher odds of idiopathic epilepsy [drifted from the evidence:] compared with intact males." [drifted from the evidence:] (Accompanying post text: "359% HIGHER ODDS: [drifted from the evidence:] Neutered males compared with intact females," [drifted from the evidence:] "SPAYED FEMALES: No [drifted from the evidence:] statistically significant increase [drifted from the evidence:] compared with intact females," [drifted from the evidence:] "TIMING MATTERS: All nine neutered males with epilepsy had been neutered before their first reported seizure," "IS IT TIME TO RETHINK HOW WE STERILIZE DOGS?", DOI given as doi.org/10.1093/jvimsj/aalag230)
A 2026 study [added by the neutral restatement:] of 743 Golden Retrievers in the Journal of Veterinary Internal Medicine [added by the neutral restatement:] reported that neutered [added by the neutral restatement:] males had [added by the neutral restatement:] about 2.57 times the odds of idiopathic epilepsy [added by the neutral restatement:] of intact males, [added by the neutral restatement:] and about 4.59 times the odds [added by the neutral restatement:] of intact females, [added by the neutral restatement:] with no significant increase [added by the neutral restatement:] for spayed females.
Red-tinted words in the claim drifted from the evidence. Green-tinted words are what a neutral restatement needs.
The trace / claim to source
- A study matching the description exists: published 10 October 2026 in the Journal of Veterinary Internal Medicine, which is a peer-reviewed journal, covering 743 Golden Retrievers with 29 cases of idiopathic epilepsy and 714 controls.
- The sample sizes in the post, 743 dogs and 29 with idiopathic epilepsy, match the study as reported.
- The study did examine sex and neuter status among the factors it looked at, alongside breeding lines, gastrointestinal problems and diet.
- Neutered males were more common among the affected dogs than among the controls in that study population, so the direction the post describes matches the reported direction.
- Idiopathic epilepsy was more common in this study population of Swedish Golden Retrievers, at 3.9%, than the roughly 0.62% previously reported for dogs generally.
- The post lists the neutered male figure as a finding and, in the next line, labels the spayed female result as showing no statistically significant increase. A reader will take the male figure as the significant one. The available report of the study says the neutered versus intact male comparison did not quite reach conventional statistical significance.
- The 157% figure rests on 9 neutered males among 29 dogs with epilepsy in a single Swedish sample. A difference measured on that few animals carries wide uncertainty, which the post does not mention.
- This is an observational study that measured what went together in a group of dogs. It cannot show that neutering caused epilepsy, and the post's question "could neutering be linked to higher odds of epilepsy" is presented alongside "is it time to rethink how we sterilize dogs," which invites a decision the study design cannot support.
- The 359% figure compares neutered males with intact females, which changes two things at once, sex and neuter status. The same study reported that males of any status had about 2.4 times the odds of females, so most of that gap is the sex difference rather than the surgery.
- "All nine neutered males with epilepsy had been neutered before their first reported seizure" is offered as evidence that timing matters. It shows only that the surgery came first in those nine dogs. Male dogs are commonly neutered young and seizures in this breed typically begin later, so that order is what you would expect even if the two were unrelated.
- The figures come from Swedish Golden Retrievers, and the report of the study states its prevalence figure should not automatically be applied to the breed worldwide. The post presents the numbers without that limit.
- The DOI printed on the post did not resolve to any record in searches, so a reader cannot use it to check the figures.
- Other published work does not line up behind the post's framing: one 2026 referral study of Golden Retrievers found no significant sex difference, and a 2012 study of dogs with idiopathic epilepsy found intact males twice as likely as neutered dogs to have cluster seizures.
- Whether the exact figures 157% and 359% appear in the paper, and what their confidence intervals and p-values are. The direction is corroborated by the trade report, the precise values are not.
- Whether the study adjusted for age, and whether age at neutering was recorded or analysed at all, which is the variable the post's timing argument rests on.
- Who funded the study.
- Whether hormone-sparing sterilisation changes epilepsy risk in dogs. No evidence either way was found, and the study as reported did not test it.
A study matching the post's description exists. Published October 10, 2026, in the Journal of Veterinary Internal Medicine, the study examined 743 Golden Retrievers, including 29 dogs diagnosed with idiopathic epilepsy and 714 unaffected controls, and found a 3.9% prevalence of idiopathic epilepsy in the study population, substantially higher than the approximately 0.62% prevalence previously reported in the general canine population. Researchers from Sweden and Denmark investigated the prevalence of epilepsy in the breed, characterized seizure patterns, and explored whether factors such as sex, breeding lines, gastrointestinal problems, and diet were associated with increased seizure risk. On the specific comparison the post headlines, the one available report of the study states the opposite of what the post implies: male Golden Retrievers had approximately 2.4 times the odds of idiopathic epilepsy compared with females, and neutered males were more frequently represented among affected dogs than among controls, although the comparison between neutered and intact males did not quite meet conventional statistical significance. The same report cautions on generalising the study's figures: the research was conducted in Swedish Golden Retrievers, genetic differences between regional breeding populations could influence epilepsy prevalence and clinical presentation, and the 3.9% figure should not automatically be applied to all Golden Retrievers worldwide. The wider literature on neuter status and seizures does not point one way. A separate 2026 referral study of the same breed found no sex difference: the group consisted of 20 males (5 of 20 neutered) and 12 females (4 of 12 neutered), with no statistically significant difference in distribution of sexes (P = 0.314). An older study of dogs with idiopathic epilepsy found the reverse direction for seizure clustering: intact males were twice as likely (P = 0.003) as neutered dogs to suffer from cluster seizures, and intact females had significantly more frequent cluster seizures than neutered dogs.
Complete reasoning
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