Prevalence of adenomyosis in adolescents: diagnostic process and symptoms. Systematic review.

Background: Adenomyosis is a uterine disorder commonly associated with painful menstrual cycles, abnormal uterine bleeding, and dyspareunia, which can significantly impact fertility, pregnancy outcomes and overall quality of life. Recent literature reports suggest that adenomyosis is increasingly being identified in adolescents, particularly in those presenting with severe dysmenorrhea and heavy menstrual bleeding. In this review we evaluate the frequency of adenomyosis diagnosis on imaging studies in relation to the occurrence of dysmenorrhea, pelvic pain and heavy menstrual bleeding (HMB).

Methods: A thorough literature search was performed using PubMed, EMBASE and SCOPUS databases. It was confined to articles published from 1 January 2019, to 1 August 2024 and included only those available in English. Due to the very limited number of publications on this topic, an age range of 12-25 years was selected as the inclusion criteria. For articles that met the inclusion criteria, information regarding diagnosis on imaging and relation to the occurrence of symptoms was extracted.

Results: Five full-text articles were reviewed. Studies including adolescents and young women from 12-25 years of age who presented with HMB, pelvic pain, dysmenorrhea and an imaging-based diagnosis of adenomyosis. The prevalence of adenomyosis in this population ranged from 25 to 45%. It is crucial to consider adenomyosis in the differential diagnosis of adolescent girls presenting with dysmenorrhea, heavy menstrual bleeding, and pelvic pain. Dysmenorrhea was the most frequently reported symptom (from 81 to 100%) associated with imaging features of adenomyosis.