![](https://cdn-prod.medicalnewstoday.com/content/images/articles/322/322961/concerned-woman-at-her-desk-due-to-absence-of-menstruation.jpg)
An absence of menstruation, also called amenorrhea, means either that a person has not started having periods by the age of 16 or that someone who has started menstruating has missed three periods in a row. In this article, learn about 13 causes of amenorrhea, possible additional symptoms, and when to see a doctor.
![](https://www.frontiersin.org/files/Articles/953431/fendo-13-953431-HTML-r3/image_m/fendo-13-953431-g001.jpg)
Frontiers Epigenetics of functional hypothalamic amenorrhea
![](https://m.media-amazon.com/images/I/71zAA8E6YjL._AC_UF1000,1000_QL80_.jpg)
A Break in Your Cycle: The Medical and Emotional Causes and
![](https://media.post.rvohealth.io/wp-content/uploads/sites/3/2020/02/blood-on-a-tissue.jpg)
Absence of menstruation (amenorrhea): 13 causes
![](https://osmose-it.s3.amazonaws.com/3FqMMdS3Q7G3rxpEOvNa6alARhG8t6mr/_.jpg)
Amenorrhea: Video, Anatomy, Definition & Function
![](https://wexnermedical.osu.edu/-/media/images/wexnermedical/blog/2018-stories/09/disappearing-period/periodcalendar_blogsmall.jpg)
Is it normal to miss periods?
![](https://image.slidesharecdn.com/amenorrhea2-200915110338/85/amenorrhea-define-cause-sign-and-symptoms-type-pathological-and-physiological-amenorrhea-and-its-treatment-and-management-cushing-syndrome-define-causes-sign-and-symptoms-in-ppt-2-320.jpg?cb=1667928267)
Amenorrhea - Define, Cause, Sign and Symptoms, Type- Pathological
![](https://www.meandqi.com/media/pazfdiiz/blood-deficiency-icon.png)
Amenorrhea Relief with Traditional Chinese Medicine - Me & Qi
![](https://www.merckmanuals.com/-/media/manual/professional/images/g/y/n/gyn_secondary_amenorrhea_algorithm_no_fnts-no-values.gif?thn=0&sc_lang=en)
Amenorrhea - Gynecology and Obstetrics - Merck Manuals
![](https://www.mdpi.com/nutrients/nutrients-13-02827/article_deploy/html/images/nutrients-13-02827-g002.png)
Nutrients, Free Full-Text
![](https://www.menopausenow.com/pics/6/b/2/738832/menstrual-disorders.png)
Menstrual Disorders
![](https://d16qt3wv6xm098.cloudfront.net/16vI2s6uRTSLQ6gUY9TYeCT8QHe-47VI/_.jpg)
Secondary Amenorrhea: What Is It, Causes, Treatment, and More
GBR Fertility Centre - Primary amenorrhea is the absence of
![](https://ufhealth.org/assets/adam/17125.jpg)
Absent menstrual periods - primary - UF Health
![](https://www.totallysuperhero.com/wp-content/uploads/2023/11/0-f3eb8f.jpeg)
![](https://m.media-amazon.com/images/I/81aqUCnZ9EL._AC_UF894,1000_QL80_.jpg)
![](https://www.moncouturier.com/v/vspfiles/photos/DD08182055-2.jpg?v-cache=1517918042)