06/03/2026
1. Male Dog or Cat
> Check for Testicles: Gently examine the area under the a**s and between the hind legs. If the sc***um is empty, flat, or very small, the animal has likely been neutered.
> Note on Cryptorchids: Sometimes, one or both testicles do not descend into the sc***um (retained). If you only feel one or none, the animal might still be fertile or may have had an abdominal surgery to remove them.
> Behavioral Clues: Neutered males are less likely to exhibit extreme roaming behavior,, marking territory with urine, or excessive aggression.
> Cat-Specifics: Unneutered male cats ("toms") typically have large, thick, puffy cheeks, and their urine has a very strong, pungent odor.
2. Female Dog or Cat
> Shaved Belly Patch: If you recently adopted the pet, look for a patch of skin on the lower belly with shorter or no hair, indicating a recent surgery.
> Surgical Scar: Examine the lower abdomen for a small, thin white line. In some cases (especially with early spays), this scar may be on the side (flank).
> Check for Heat Cycles: If the pet never goes into heat (no crying, howling, or attempting to escape to find mates), she is likely spayed.
3. Identification Marks (Especially for Strays/Rescue Pets)
> Ear-Tipping: A "tipped" or notched left ear (about 1 cm of the tip removed) is a universal sign that a stray or feral cat has been spayed or neutered through a neutering program.
> Microchip: A vet can scan for a microchip, which may contain medical records indicating the spay/neuter status.
4. See a Veterinarian
> If you are still unsure, particularly if you rescued a cat or dog with no history, it is best to bring them to a vet.
i) Perform a physical examination (even using clippers to find a hidden scar).
ii) Use an Ultrasound/Xray to check for the presence of a uterus.
iii) Run blood tests to measure hormone levels (e.g., Anti-Müllerian Hormone Assay).
