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Updated on September 23rd, 2025
Pet's info: Cat | Bombay | Male | neutered
Male bombay cat, 11 months old, very recently neutered. Prior to operation began developing very vicious behaviour patterns, including stalking, attacking my limbs and lunging for my throat. Prior to this, he was an exclusively affectionate cat. Is still very affectionate but this affection can become very aggressive, very suddenly. Yesterday, for example, he was nuzziling me and then latched his teeth into my throat. Whenever he does, I gently remove him from the room. Is there any advice?
4 Answers

Answered By Jessica Desrosiers
Veterinary Technician
Published on August 27th, 2019
Answered By Dr. Elizabeth
Veterinarian
Published on March 16th, 2020
Without being able to examined Psycho it's impossible to know if he has fleas. I recommend to get a flea comb and comb the kitty around the lower back, the hind legs and the belly between the hind legs. Look for fleas or black pepper flakes.
You can also treat for fleas. If you must stick with an OTC product, use Frontline. You should see results within a few days. Lastly, your best option is to have Psycho examined by the veterinarian. I recommend this option because it will get the answers the fastest. I hope this helps.
1Pet Parents found this answer helpful
Answered By Megan, DVM, CVA
Veterinarian
Published on December 1st, 2017
There are several reasons for sudden onset of aggression including pain or infection somewhere, an increased thyroid hormone, or anxiety. If you want, you can try some feliway which is feline pheromones to help calm him. If This doesn’t work or if he stops eating or starts showing any other abnormal behaviors then I would have your vet take a look at him. Your vet will be able to ensure he doesn’t have an infection and they can even check his thyroid hormones of needed. If everything is normal, then talk to your vet about putting him in an anti-anxiety meds if needed. I hope this helps!
1Pet Parents found this answer helpful
Answered By Dr. Leigh, DVM
Veterinarian
Published on March 26th, 2019
It sounds like your cat has petting-related aggression. Below is a link to an article on this condition. Try to identify warning signs that he has had enough petting and stop before he reaches his threshold.
https://www.petcoach.co/article/petting-related-aggression-in-cats/
3Pet Parents found this answer helpful