 [ Symptoms ] will thc show in a urine screening where they are checking for bacteria  if you are in a moving vehicle with the windows down and someone is smoking marijuana can it show in your urine test [ Disease ] to answer your first question no a urine test that checks for bacteria will not look for other substances in the urine to your second question if you inhale a small amount of secondhand marijuana smoke might it show up on a drug screen test i would guess it is doubtful but not impossible it definitely will not show up on a urine culture designed to check for bacteria i hope that helps