Yes my Baby CH boy Marley was just done last week.. Yes they leave it open.. They have the two button spots sered & with invisable bandage.. As the wittle boo boo heals then the cat licks off the area good & in time the hair will grow back.. All my boys were done that way.. Apollo is just fine & will do good.. Quick question why is he confined to the bathroom?? He will be fine with the other babies..