Is it possible for neutered male to impregnate female cat?

by Lynn
(New York)

I had a male feral type cat I befriended about a year ago. I had his shots and neutering done in March, and put him with an unspayed female.


She just had a litter of kittens and the timing is right on for when they were put together.

Should I take the cat to another vet and let him check to see if he was fixed? I do not think this could happen. I have been going to my animal clinic for many years and have put my trust in them.

What do you think I should do?? Now I have to worry about finding good homes for them, and worry he has gotten the other female pregnant too, just great!!

Editor's note: Wow, that's a tough one, Lynn. As far as I know, the procedure to neuter a male cat is all or nothing.

They don't do vasectomies on cats as far as I know. The testicles are physically removed, so there's no way that he could impregnate a female.

So, unless they messed up in a big way, he can't be the one.

You might have noticed some behavioral changes in him after the procedure. Usually there is less aggressiveness, less tendency to roam, and a reduction in spraying behavior.

Still, to get some peace of mind, I believe you have two options. First, call the clinic that did the work and ask them to confirm. Second, you could simply call another vet's office and tell them the situation and ask them how much they would charge to check for you.

I wish you luck! Please let us know what happens.
-Kurt

P.S. If there's anyone with any input on this, please speak up. I have not run into this situation before, so I think we could all benefit from someone with experience. Thanks!

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Feb 06, 2016
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Neutered male
by: Anonymous

It takes about a week for testosterone and sperm to clear a neutered male. To be safe say 2 weeks. Did you put them together right after the surgery? If so, oops!

May 26, 2012
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Thanks David!
by: Kurt (Admin)

That's interesting, David.

I've heard that it's possible to do a vasectomy on small animals, but I hadn't heard of anyone (until now) having the procedure done on their cat. You've got me curious about how much patient education is going on, though, since behavior changes are usually touted as a benefit of neutering.

Thanks for the scoop!

May 26, 2012
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RE: Vasectomies for cats
by: David (Spots)

Just to update you Kurt, they can perform vasectomies on cats and dogs. They did one on our male Bengal, Benjamin, over a decade ago. It was also around the time they started advertising "neuticals" for dogs! Seems some owners were concerned about certain dogs losing their "self esteem".

We did not ask for this procedure - and it is usually more expensive than "cut and run" but I can only assume since he was a purebred we would want a vasectomy. Might have had something to do with keeping his hormones intact while basically sterilizing him. He still had the urge to mate, but supposedly "shooting blanks." But we also know that humans can sometimes father a child as a woman with her tubes tied can conceive.

As for mama cat, I would suggest she also be spayed. If not, she can and will "spray" to attract a mate (saw this on "My Cat From Hell") and cause neighboring males to do the same on the outside of the doors. The older she gets, the more prone she will be to uteran cancer and other "female" disorders.

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