Circumcision?

I went to the Marine Parade Polyclinic today for another round of the vaccination. It was not the usual nurse who helped me the last few times. It was a Chinese nurse who seem to have worked there a long time. Anyway, she did the usual questioning before administering the vaccination. At one point, she said she needed to take measurement of my head circumcision. Daddy looked stunned for a moment and confirmed with her that we were there for vaccination, not circumcision. She apologised for using the wrong term. She meant to say circumference. I hope Daddy and Mummy didn't get any funny ideas of circumcision. I heard it is very painful.