Curiosity about leg and armpit hair removal

Recently, I've been interested in hair removal, so I've been researching various information. I still have many questions, which is why I'm posting this. I believe hair removal is an important part of personal beauty and hygiene, but with so many different methods and products available, it's hard to know which one to choose.

I wonder if they do laser hair removal at the hospital.

Is it painful? I really want to know.