Why is my cat aggressive after I returned home and she's in heat?

Question

I've been away and hadn't see my cat for 2 months but she was with my father.then my father was away for 2 weeks and she was alone and only saw our neighbour once a day for a few minutes.now I've come home and she is alot more aggressive.she used to bite me before but in a game-like way but now she hisses at me and doesn't let me trim her nails and scratches me and is really aggressive.now she is in heat but she was never aggressive on her heat before.is it normal?will she be normal again? Pet's info: Cat | Mixed Breed | Female | unspayed | 2 years and 4 months old

Jessica Keay, DVM · Accepted Answer

I am sorry to hear about Lucy! Many cats can have personality changes at around 2 years of age as they truly reach maturity. That compounded with the fact that she is unspayed and has had a changing life situation over the past few months could definitely be affecting her personality. I would recommend an exam by a vet and having her spayed. I would recommend a feline pheromone diffuser in the house called Feliway, and a calming supplement such as Composure or Zylkene https://m.petco.com/shop/en/petcostore/product/vetri-science-composure-feline-bite-sized-chews# as well. If her aggression continues then a veterinary behaviorist consultation would be recommended.

Why is my cat aggressive after I returned home and she's in heat?

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