In terms of genetic inheritance, dimples are not dominant, they are recessive. Usually, dimples are mainly facial muscles that dimple inward when smiling, and may also be a congenital muscle defect in the cheek caused by genetics. If both parents have dimples, the next generation will definitely have dimples; if only one parent has dimples, the next generation may or may not have dimples, 50/50; if both parents do not have dimples, there is a one in four chance that the next generation will have dimples. The appearance of dimples is also related to the degree of development of the expression muscles. If the laughing muscles are not plump and there is less subcutaneous fat on the face, dimples may not appear. In addition, dimples can also be made through surgical plastic surgery. Dimples are a normal phenomenon, and nowadays, with relatively advanced cosmetic technology, dimples can be created through dimple surgery.