Patient's question:
17 years old, has not had her period until now, but her breasts are the same size as those of her peers, and she has never been treated for it.Doctor's answer:
The age of menarche for girls is approximately between 10 and 16 years old. The age of menarche varies, it can be as early as 11-12 years old, or as late as 16-18 years old. If menstruation does not occur after the age of 18, it is considered an abnormal phenomenon. The timing of menarche is related to factors such as genetics, environment, nutrition, and economic conditions. In hot climates, menarche occurs earlier, while in cold climates, it tends to be later; girls in developed cities experience menarche earlier, while those in remote mountainous areas experience it slightly later; healthy girls with good nutritional conditions tend to have menarche earlier, while weaker girls with poor living conditions tend to have it later.