Can fingerprints be used after the finger injury is healed?

Human fingerprints are controlled by genes. Because everyone has different genetic genes, fingerprints are also different. In the process of skin development, the subcutaneous tissue on the finger grows faster than the epidermis, so the pressure on the epidermis will be generated at the top, forcing the epidermis to gradually produce protrusions and ravines, forming lines, and the branches, starting points, are under the control of genes. The endpoints and junctions of a series are produced.

Fingerprints have more than 100 different characteristics. If calculated by mathematical methods, random combinations of these characteristics can be formed by mutual matching, and the number is far greater than the total population. Therefore, it is almost impossible for everyone's fingerprints to be the same.

Moreover, the damage caused to fingerprints due to cuts, corrosion, etc., will be restored to the original after healing.

There is often such a plot in film and television dramas: detectives take a magnifying glass to carefully examine the scene of the crime, and finally find the fingerprints left by the suspect on the surface of the object, and finally use this clue to locate the criminal and bring him to justice. Fingerprints can be used to solve crimes, because everyone's fingerprints are born and unique. Once upon a time, criminals tried to remove fingerprints through burning, cutting and corrosion to evade legal sanctions. However, after the wound healed, the fingerprints returned to their original state. It was really dumbfounding.

According to the uniqueness of fingerprints, scientists have gradually applied fingerprint identification technology to all aspects of life, such as fingerprint keys and fingerprint punch cards. With the help of popularization and optimization of fingerprint recognition technology, we can even use this convenient recognition function on personal computers and mobile phones, which not only avoids cumbersome password input, but also protects personal data more securely.

Now, in addition to fingerprint recognition technology, scientists have also invented more advanced recognition technologies such as palmprint recognition, iris recognition, and voice recognition. With the help of these technologies, our lives and will surely become more convenient and efficient in the near future.