To identify neutered female cats, you can try the following two aspects. ​​​​​​

First, neutered female cats basically no longer show any estrus behaviors, such as growling lowly, accepting male cats to climb on them, peeing everywhere, etc. However, very few cats that have been neutered will also suffer from these conditions, mainly due to the imbalance of hormones in the body.

Second, the belly of a neutered female cat can be opened. In some cats, a surgical scar can be seen.