It is normal for women to have menstruation between the ages of 9 and 18. If, because of abnormal uterine development, menstruation has not yet occurred at the age of 18, this is clinically abnormal. If the uterus is found to be infantile through ultrasound examination, clinically you can try to treat it with artificial cycle therapy, which is the application of the joint medication of Glivec and progesterone, and it is recommended to use the medication for half a year. It is recommended to do the corresponding examination to understand the basic health condition of the body before giving the medication for treatment. It is possible to increase the size of the uterus in the clinic, but whether the effect of the treatment can be achieved or not is subject to the ultrasound examination after six months. If, after treatment, the uterus has not reached a normal size, has not enlarged, and has not yet had a period, it is recommended that treatment be abandoned, as it is clinically impossible to have a period again and to conceive a child.