Actually not just for Koreans, but many other Asians as well
[QUOTE=Jax213;6474189]A Korean friend told me this.
If a Kgirl has a small round lump scar on her upper arm she is in her mid to late 30's at a minimum.
The scar is from a vaccine all Koreans would get in elementary school but was phased out in the early 90's.
Simple math suggests she would have to have been born at least late 80's to have that scar.
So scar = not HYA.[/QUOTE]It's the BCG vaccine for TB. I've met Filipinos, Cambodians, Vietnamese people, and Chinese people who have it.