I just got one about a month ago; I believe the crucial healing time is in the week or two after the tattoo during which time he should try to keep his control as tight as possible (like Tressa said he'll risk infection with poor blood glucose control).
I (as I normally am) was in good but not perfect control at this time and had no problems whatsoever. Just tell him to keep it clean with antibacterial soap (they should explain all of this to him at the parlor) and keep his glucose in control.
I happen to believe that diabetes has nothing to do w getting tattoos.... i personally have 10 tattoos & none of them have ever gotten infected....as far as body pierciengs go i could keep them cuz they did get infected in a few days even though i took good care of them! ive been a juvenile diabetic since i was 17 years old! my blood sugars have ranged anywhere from 20 being my lowest to 1530 being my highest! Im also an epiletic for the last 4 years! So again to answer ur question ....no there is nothing wrong with getting a tattoo being a diabetic!
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