Most dogs impounded after an attack are entire dogs... extremely rarely are they altered dogs. Two studies I saw show that in the US an average of 92% of fatal attacks were by un-neutered male dogs and in the UK about an average of 85% of dog attacks were by unaltered dogs.

Un-altered dogs are far more likely to attack or show aggression or unpredictable behavior. Neutering too early is a big no-no... but I think for most owners, doing it at the proper age is better than not.

Never do I advise normal dog owners (as opposed to people who show dogs, or breed them... and arguably they should, as well) that neutering is a bad thing to do, even though I don't prefer it myself.

My last un-neutered male attracted other males aggressive approaches which turned into fights. He was not an aggressive dog, but when other un-neutered males entered his space with aggression, it got ugly. Neutered males are often not considered a threat by other males and are left alone.

I'd not advise neutering a Pug of this age at all... but of course it's a consideration with any other dogs you might get. The health benefits and disadvantages kinda weight themselves depending on what breed you have etc.

Here is what I believe to be a solid article about the basics of altering... it's not overly scientific and give people a good glance at what may be right for them.

http://www.yourpurebredpuppy.com/hea...-male-dog.html

I sorry but there is so many misconceptions in that article it makes it worthless......

Castrated dogs don't lift their leg and scent mark..

Castrated dogs don't go after bitches in heat ( a castrated dog can and does tie with a bitch, it just does not produce sperm.

A castrated dog is not aggressive....