Reasons for wearing muzzles on dogs:

1. Dogs are relatively aggressive, in order to prevent dogs from biting others.

2. Dogs like to express their feelings by licking to prevent dogs from licking things or people randomly.

3. Prevent dogs from eating random things that may cause poisoning or gastrointestinal diseases.

4. Prevent barking dogs from affecting residents’ lives.

5. Prevent some dogs from licking and biting their own wounds after surgery, causing infection.