If micro-chipping is painful, I didn't notice it when my pug or grey were micro-chipped. I compare it to immunizing my children, they cried for a little when they got some of their immunization shots but it was only for a moment. I knew they would be all right and would not get polio or tetanus or whatever and all was right in the world. I had a friend, Mary, whose parents didn't think a polio shot was important, she is the one who lived with her polio all her life!!!!!