{"paper_id":"921c296f-5978-4a40-8643-59b225ac702d","body_text":"Abstract\nNeonatal uterine bleeding occurs in the 3rd–7th day postpartum. Little attention is paid to it. Data are available in the German, French, and Serbian literature. The reported incidence of visible vaginal bleeding occurs in 3.3–5.3% of the female neonates, while the incidence of occult bleeding by testing Hgb was 25.4–61.3%. The incidence of 0.78% in preterm newborns was statistically lower than the incidence of 9.10% in the case of postmaturity and the reported incidence of 42% in the case of preeclampsia. It is likely that fetal hypoxia influences the occurrence of a neonatal uterine bleeding. The autopsy study by the Harvard pathologists Ober and Bernstein (1955) has shown that in 5% of the newborns the endometrium is progestational (decidual or menstrual), 27% secretory, and 68% proliferative. The morphology of the uterus in the newborn with a small corpus and a long cervical channel, blocked by a mucus plug, favors retrograde spreading of menstrual sheddings. It has been suggested that stem/progenitor cells are present in neonatal menstruation and may be linked to the early onset of endometriosis.\nAccess this chapter\nTax calculation will be finalised at checkout\nPurchases are for personal use only\nSimilar content being viewed by others\nReferences\nEskenazi B, Warner ML. Epidemiology of endometriosis. Obstet Gynecol Clin North Am. 1997;24:235–58.\nFallon J. Endometriosis in youth. JAMA. 1946;131:1405–6.\nYeung P Jr, Gupta SH, Gieg S. Endometriosis in adolescents: a systematic review. J Endometr Pelvic Pain Disord. 2017;9(1):17–29.\nBrosens I, Gordts S, Benagiano G. Endometriosis in adolescents is a hidden, progressive and severe disease that deserves attention, not just compassion. 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Springer, Cham. https://doi.org/10.1007/978-3-030-52984-0_18\nDownload citation\nDOI: https://doi.org/10.1007/978-3-030-52984-0_18\nPublished:\nPublisher Name: Springer, Cham\nPrint ISBN: 978-3-030-52983-3\nOnline ISBN: 978-3-030-52984-0\neBook Packages: MedicineMedicine (R0)","source_license":"CC0","license_restricted":false}