cat agressivity

Question
i have two cats at home and i love them both so much.one is male (10 months old) and female (2 years old)..the female got pregnant from the male and gave birth to a kitten yesterday in the morning. both cats are separate from each other...the male cat attacked me and my mom before she gave birth in couple of hours. i have no idea why he became that aggressive suddenly...im very sad...i took him to the vet today for castration maybe after the operation he wont get excited anymor and maybe doesnt get agressive anymore,,,what do u think? plz im really lost
angela(lebanon)

Answer
Angela,

Yes, whole male cats can become very aggressive when kitten birth is going on.  You were wise to separate them.

The neutering of the boy should overcome the aggression.  It will take a few weeks for his hormones to dissipate.  Certainly, by the time the kittens are weaned, he should be much more docile.

Best regards... Norm.