| Neonates | | Estrogen withdrawal | | Premenarchal | | Foreign body | | Trauma, including sexual abuse | | Infection | | Urethral prolapse | | Sarcoma botryoides | | Ovarian tumor | | Precocious puberty | | Early postmenarche | | Ovulatory dysfunction (hypothalamic immaturity) | | Bleeding diathesis | | Stress (psychogenic, exercise induced) | | Pregnancy | | Infection | | | Reproductive-age | | Ovulatory dysfunction | | Pregnancy | | Cancer | | Polyps, leiomyomas, adenomyosis | | Infection | | Endocrine dysfunction (polycystic ovary syndrome, thyroid, hyperprolactinemia) | | Bleeding diathesis | | Medication related (eg, hormonal contraception) | | Menopausal transition | | Anovulation | | Polyps, fibroids, adenomyosis | | Cancer | | Menopause | | Endometrial polyps | | Cancer | | Postmenopausal hormone therapy | |
