I am male and 18. i have short fingers. are there ways to make fingers longer?

For specific things: Such as congenitally short fingers there are time when function is imporvoed by lengthening a digit but this is a rare occurrence. For a "normal functioning hand" with all the digits there is no cosmetic way that would successfully lengthen fingers. Even in congenitally short fingers it is a very controversial subject as it has a very limited functional indication ( very select cases).