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Primary amenorrhea

MONDO:1060208

A form of amenorrhea defined by the absence of menstruation by the age of 15 years, or by 3 years after the onset of breast development (thelarche).

4 clinical trials for this condition and its sub-types.

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Broader categories

Disease (618) Female reproductive system disorder (23) Human disease (14) Menstrual disorder (14) Amenorrhea (13) Reproductive system disorder (13) Disease by body system or component (0)

Trials to join now! 1 Not yet finished but already full! 2 Completed 1

Teen bone health under the microscope: new study looks at why some girls develop weak bones

Knowledge-focused Completed

This completed study looked back at the medical records of 74 adolescent girls aged 12 to 21 who had bone density scans. Researchers wanted to find out which girls are most at risk for low bone density (osteopenia or osteoporosis), especially those with missed periods or other gy…

Sponsor: Bagcilar Training and Research Hospital • Aim: Knowledge-focused

Last updated Jun 26, 2026 17:13 UTC