That small round scar on your upper arm is not an accident, a flaw, or a stain from a poorer past. For most people, it is the lasting imprint of the BCG vaccine, given in infancy to protect against tuberculosis—a disease that once devastated entire countries. It was part of a massive public health effort, rolled out across rich and poor families alike, often with little explanation and even less ceremony.
You may never remember the day it was given, but your body does. The scar is evidence of a normal, healthy immune response, not weakness or damage. It doesn’t mean you are sick, and it doesn’t need to be removed. It simply stayed while the story faded. Now, when you see that small circle on your arm, you can recognize it for what it truly is: a quiet symbol of protection, history, and survival that has traveled with you your entire life.
