Tattoos are not supposed to come into play, neither are scars or stretch marks (the kind women get). But just like a jury who hears something and are told to disregard I have to believe some prejudice can come into play. For the most part I think tats are pretty much safe but I seen a few where the entire legs have been covered or huge colored ones that take up 80% of a persons back. It can definately make it harder to see muscle separation if taken to an extreme.