Pets

https://www.vet.cornell.edu/departments-centers-and-institutes/riney-canine-health-center/health-info/mammary-cancer#:~:text=According%20to%20the%20American%20College,spayed%20after%20their%20second%20heat


According to the American College of Veterinary Surgeons, the risk of your dog getting mammary cancer is: 0.5% risk for female dogs spayed before their first heat cycle. 8% risk for female dogs spayed after their first heat. 26% risk for female dogs spayed after their second heat.