Star first issue 13 years old. According to relevant public information, the star's first age is 13 years old. The first menstruation is one of the typical changes in female adolescence, and most women will have their first menstruation after two years of chest development. Under normal circumstances, women will experience their first menstruation around 13 years old. However, because everyone's growth and development level is different, it is normal to consider the age at 1 1- 16.