Long-acting reversible contraceptive choices are becoming more popular among young women, and providers may need to keep in mind those methods that are likely to be most successful.  The dimensions of the uterine cavity vary according to the parity of a user, with the nulliparous woman having a smaller uterine space.  With the known intrauterine contraceptive device side effects being possible, and with smaller such devices being clinically available for patients, selection of those smaller devices for contraceptive use may be more ideal for those younger nulliparous women.  In this way, complications with this method may possibly be avoided.