Proposed ages for sterilization
Supporting information for these recommendations can be found here.
Visit this printable algorithm for clients on spay/neuter timing.
Castration
Small Breeds |
Large Breeds |
6 months of age |
Wait until growth stops (~9–15 months of age) |
Ovariohysterectomy
Small Breeds |
Large Breeds |
Prior to anticipated heat cycle (5– 6 months of age) |
Wait until growth stops (~5–15 months of age)* |
Note:
Small breeds: < 45 lbs projected adult body weight
Large breeds: ≥ 45 lbs projected adult body weight
*Use clinical discretion combined with comprehensive owner education in an effort to balance the benefit of decreasing mammary neoplasia and unwanted litters when done earlier (before the first estrus) versus decreasing the risk of orthopedic disease, some cancers, and urethral sphincter mechanism incompetence if performed later (after growth stops).
Resource Center
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Spay and Neuter Timing
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Diagnostic Testing for Each Life Stage
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Nutritional Assessment
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Vet Team & Pet Owner Collaboration
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Resource Center
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Spay and Neuter Timing
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Diagnostic Testing for Each Life Stage
arrow_drop_down
arrow_drop_up
Nutritional Assessment
arrow_drop_down
arrow_drop_up
Vet Team & Pet Owner Collaboration
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