Background: The fingerprint of every person in the world is different from another and these fingerprints have been used to catch the criminals in many big cases. Scientists have been researching for a long time how human fingerprints come into existence, which scientists have now traced. Fingerprints, which are the curved and raised lines on the tips of your fingers, are formed before birth. These all begin to spread from the three points of each finger, one from the bottom of the nail, the other from the middle of the finger and the third from the point closest to the tip of the finger.