Clinically, the most typical manifestation of amenorrhea is the absence of menstruation or the cessation of menstruation. There are many causes of amenorrhea, including menopausal syndrome, exposure to cold, fatigue, emotions, bacterial infections, medications, and diseases, all of which can lead to hormonal imbalances and increased levels of male hormones. Amenorrhea can be divided into primary amenorrhea and secondary amenorrhea. Primary amenorrhea is less common and is often caused by genetic and congenital developmental defects. Secondary amenorrhea has a higher incidence than primary amenorrhea, and active treatment is required in such cases.