Do the lines and patterns in the fingerprints of a person change over the years?

No. A fingerprint is called a papillary pattern and begins to form in the womb of the mother in 3-4 months of pregnancy. During the development of the fetus, the skin is formed, including on the fingers. Our palms are covered with two layers of skin: the lower one - the dermal papillae and the upper one - the epidermis. Because the layers of the skin in a person do not fit tightly together, the dermal papillae deforms, forming folds that form grooves on the finger pads. At 7 months the fetus already has an individual papillary pattern. With age, the pattern on the fingers only increases in size, the shape of the lines and the details of the pattern do not change. It is noteworthy that even for identical twins, having a similar DNA structure, fingerprints will be different.