I have 3 cats total; a female, a male and one of their daughters. They were living peacefully together for about 6 years, but in the last 2 months, the female (the mom) has been attacking the male. Luckily, the male doesn't fight back at all because he could do some serious damage. The male does not appear sick at all so I am confused as to what is going on. I thought separating them for some time would cool the female down but she just attacks the male everytime we bring her back around. I thought that the female had some issues because she is naturally a more aggressive cat, but she only attacks the male, not the other female. Could it be that she needs to be fixed? If so, how hard is it on older cats? Sheâ€™s like 10 years old now. The other two have already been fixed. I really thought this fighting would pass by now but it just continues everyday. I am totally at my wits end and would appreciate any advice!