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