Why don’t cuts on our fingers affect our fingerprints?

 

            Usually a person’s fingerprints do not change during the lifetime. Minor and superficial cuts that he’ll do not affect the pattern formed by the ridges that cover the skin of the fingertips. Ridges are the impressions which make fingerprints. However, extensive or deep wounds, severe burns, surgery or disease may destroy these ridges and lead to a change in fingerprint patterns. Deep wounds damage the underlying dermis of the skin and healing often leads to scar formation. Since scar tissue does not                                                                                 show secondary modifications such as hair, it does                                                                                  not show the ridge pattern either. However, these are                                                                             extremely unlikely events and usually fingerprints                                                                                  are for life.