Symmetry is natural phenomena in the universe, presents itself strongly in the visual arts, especially in the field of portrait drawing, where the importance of this subject stands out when the artist begins to draw the portrait from facing position, this leads to entirely appearance of left and right side of the face, in this case, when comparing the accurate features of the face on both sides, it may appear not aligned perfect toward of each other, in addition, there are some differences in finer details of the features, where two halves not matched as when the picture is reflected in the mirror, so this phenomenon is known as "asymmetry faces", it's one of human characteristics, while there are other people who have completely "symmetrical faces", or have two halves of the face are almost identical, this lead to thinking about the impact of "symmetry" and "asymmetry" on the mutual feeling between humans about beauty and attractiveness, where researchers opinion in theoretical sciences of biological evolution that "symmetrical faces" are more beautiful and attractive, while opponents of this opinion find the "facial symmetry" is a disturbing matter because it makes the face more artificial.