High cheekbones refers to the zygomatic bones in the face of primates, which in certain individuals may be more pronounced than others, causing the upper part of the cheeks to jut out and form a line cut into the sides of the face. High cheekbones, forming a symmetrical face shape, are very common in fashion models and are considered a beauty trait in both males and females. High cheekbones develop with maturity and are a sign a woman is old enough to be capable of reproduction. According to Cartwright, in males prominent facial features such as high cheekbones and a strong jaw and chin are a sign of a high level of testosterone and are considered attractive physical traits in many cultures.