Fergus has two sacral dimples. It was picked up at birth and we haven't ever been able to see the bottom of either dimple. However as he grows they are actually getting deeper. He's had a couple of ultrasounds and is being monitored by a surgeon. Neither of his dimples seem to be connected to the spinal cord, so the only prob with them seems to be the risk of infection (at this age from stray poop and after puberty from ingrown hairs). We are fastidious about keeping his dimples free from poop and so far we've not had any infections at all.

It looks as though Fergus has to have another operation for an unrelated problem. While he's under GA the surgeon thinks he will "repair" (whatever that means) the dimples. I think if he wasn't having another operation the advice would be to just let it be unless we start having problems with infections. Due to the location of the dimples (near the spinal cord) infections are apparently more dangerous than in other places. We're actually seeing the surgeon again on Friday so will be interesting to see what he says a couple of months down the track.