What Causes ‘Fingerprints’ and Why Are They Unique?

Fingerprints are like tiny, special patterns on your fingers. They’re made when you're growing in the womb. Just like snowflakes, no two fingerprints are exactly the same because each person is a little bit different inside. Think of it like this: if your skin has hills and valleys, those make up your fingerprint, and everyone’s hills and valleys look slightly different.