And he was surrounded by 20 veterinarians from all over the world. It was a free clinic for sterilization of dogs and cats. The volunteer docs performed over 700 surgeries in two days.
Now, my three year old mixed breed doggie has no testicles. Pobrecito didn’t get any pain meds, either. When I met the dog, he was a three year old street dog. Now, he has a home, food and shelter.
The surgery was four days ago. He has been at my side continuously.
What changes in his behavior should I expect after this type of surgery? Any Dopers with dogs gone through this?
His desire to slip his leash/jump the fence to go chasing down females in heat will disappear.
I hope this is the case purplehorseshoe. He has gotten into a few fights (with males) while chasing those bitches.
First, thank you for having him sterilized. I volunteer in dog rescue and it’s so, so hard to reduce the population of unwanted dogs.
Your buddy will be happier and healthier now, but you may have to watch his diet and feed him a set amount each day (meaning, it’s better not to free feed him). Dogs, like kids, claim to be hungry 24x7x365 but they shouldn’t be allowed to eat to obesity. Neutered animals do sometimes gain more weight, so you’ll have to keep an eye on that.
If it helps, you can still give him treats and spoil him rotten. Dogs (unlike kids) love things like cooked broccoli and carrots, tomatoes (only red ones), bananas, marshmallows (in moderation), green beans, and many other veggies. Experiment to see what your dog likes and then use those as treats. Stay away from onions, garlic, avocado and chocolate.
Thank you JcWoman. I have heard that he could gain weight. I am anxious to give him the treats you suggested.
I dunno though. In my limited experience, a lot of sexualized behavior is learned, not hormonal. I have known dogs neutered in adulthood that had the habits of a breeding response, even if they couldn’t have had the hormones to drive it. Likewise with cats: marking, competition, even fighting and attempting to mate. (That had to have been frustrating for everyone involved 
)
ETA: JcWoman’s advice about diet and exercise is true, IME. Neutering can also make some dogs less active unless you can encourage to the contrary.
There’s a huge billboard on 17 towards South Carolina with a picture of a dog and the caption, “Don’t Castrate Your Best Friend” promoting canine vasectomies and fallopian tube tying as an alternative to spay and neuter. I didn’t even know that was a thing, but it must be.