Yup, just had pyo with my 7 year old intact female. I am very attentive and caught it early so she never was toxic or in danger, but it was an emergency spay, and cost $1,000. In future, I will spay my girls at around 7-8. Most pyos hit around age 7. It's super common, my vet said 30% of females will suffer pyo, and all my research backs that up- there are some good studies in European countries where females are left intact.
It can be deadly, and it can be very expensive and dangerous for the female if it is closed pyo and the owner doesn't notice immediately. As in $4- 5 K and hospitalization, and real risk of losing the female.
Sure, some get lucky, but I've had 100% of my intact girls over age 7 get pyo so far, so, that's my experience!
I'd just wait until age 6 or so and schedule a complete spay. Why risk the life of your girl, I won't do it again.
Also, remember if you do not frequently breed your female, or do not breed her at all, she's probably got a ton of ovarian cysts by the time she is around 6-7 and honestly, I think those are probably painful for the dog. If you do breed frequently, the female is less likely to get pyo, but I mean frequently, like at least 3 times.
Women who know they have the gene for high risk of breast/ovarian cancer will do preventative "spay" and mastectomies. I do not even think their risk is as high as 30%. So, yeah, I think it's a good idea to spay a female to prevent pyo, but that it is fine to wait until the female is mature (age 2 and up) or is done breeding (generally age 7 or so).
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