My girlfriend does not routinely have medical check-ups, saying there is no need.
Many persons believe that a doctor is necessary only when one is sick.
Sadly, many people neglect the concept of prevention. This is the justification for your girlfriend going to a doctor. Regular Pap smears and mammograms, for example, are regarded as good preventive care for a woman. You may also want to talk with her about whether her reluctance relates to any bad experiences with medical types. Some women, for example, have complained of rough gynecological exams which disincline them toward further routine checkups.