If you are 16 years old and have not had your period for 2 months, it is important to know clinically how old you are at the time of your first menstruation. If you are 16 years old and have just had your first menstruation, you may not have perfect ovarian function after your first menstruation, which can lead to irregular menstruation, so don’t be nervous, you can drink hot brown sugar water for 3-5 days to see if you will get your period. If you have had sex for 2 months and have not had your period, you must first rule out the possibility of pregnancy. If you have not had your first period for more than six months, it is advisable to have an ultrasound examination to rule out uterine abnormalities and to understand the condition of the pelvic cavity, and it is also advisable to have a blood test for sex hormone six if necessary, and then give treatment according to the results.