The reasons why cats still bark and urinate everywhere after being neutered:

1. Habits left over from estrus. Cats are in estrus because the hormones in their bodies have reached a certain level, but After the sterilization surgery, the hormones in the cat's body are not completely metabolized and will remain in the body for 2 to 3 months. During this period, the hormones in the cat’s body will stimulate the urinary tract system, causing the cat to pee everywhere.

2. If the operation is not done thoroughly, in addition to the habit left over from estrus, if the sterilization operation is not done thoroughly when sterilizing the cat, it will still cause the cat to continue to be in estrus.

3. Cats with urinary tract diseases will urinate randomly. Due to the special physiological structure of male cats, they are prone to urinary tract diseases, especially if they have uncontrolled diet after sterilization. Obesity is also one of the main causes of urinary tract diseases in male cats.

4. The cat is frightened, or encounters something that makes it feel unhappy or uncomfortable. Cats are relatively sensitive animals. If there are strangers in the home, or the environment changes, or there is a construction site nearby making loud noise, etc., these factors will cause the cat to become stressed.

5. The naughty cat’s revenge behavior. If a cat owner makes the cat unhappy, the cat will urinate in revenge.