Why do dogs keep hiding from their owners? Please help! !

It’s not that I’m afraid, my dog ??is also the first to be shaved and played with. The dog will feel uncomfortable and may be itchy. I just squat down and call its name gently. If it doesn't come, I will slowly walk to it and then gently stroke it. After a while, it will get better, but it will also hide. It'll be fine in a few days, sir, don't worry.