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When do male cats reach sexual maturity & what are the signs?

Updated on September 23rd, 2025

Pet's info: Cat | Persian | Male | unneutered | 4 months and 29 days old | 5.89 lbs

At what age do male cats reach sexual maturity? I have 2 five month old kittens, how will I know they have reached sexual maturity? What are the signs and what behavior changes should I expect? Is there something I can do to help them or something different I have to do to take care of them? I don't want to get them neutered

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on November 25th, 2017

Male cats will reach sexual maturity anytime after six months of age. They will want to roam more, can and do start fighting with each other and other cats for females and territory, and will urine mark their territory. This will include spraying it the house, which smells terrible and is almost impossible to get out. They can also become more aggressive. Unfortunately there is nothing you can do about these behaviors, the only way to prevent them from happening is to have them neutered. If you don't want to do that, then you will have to understand that they can and will mark with urine in your home, they can be gone for days roaming around, and they will be more prone to fights and therefore injuries. It truly is better to have them neutered for their health and behavior, as well as for your home. I hope this helps!
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