Fundal Hydrometra (Hysterometra): Causes, Symptoms & Management

Fundal hydrometra (also hysterometra) = fluid accumulation in the uterine fundus due to cervical outflow obstruction. The uterine cavity distends with serosanguineous or mucoid fluid.

Etiologies (Cervical Obstruction)

• Congenital: Cervical agenesis/stenosis, transverse vaginal septum.
• Acquired:
  • Post-surgical: LEEP, cone biopsy, cerclage, hysterectomy cuff stenosis.
  • Inflammatory: PID, endometritis, TB.
  • Neoplastic: Cervical/endometrial cancer, sarcoma botryoides.
  • Radiation fibrosis.
  • Asherman's syndrome (intrauterine adhesions extending to cervix).
  • Atrophic cervicitis (postmenopausal).

Clinical Presentation

• Pelvic pain/pressure (cyclic if functional endometrium)
• Irregular/heavy bleeding or amenorrhea
• Infertility / recurrent pregnancy loss
• Palpable uterine enlargement
• Urinary frequency/retention (compression)

Diagnosis

• Ultrasound: Hypoechoic fluid collection in uterine cavity, distended fundus.
• Hysteroscopy: Direct visualization – diagnostic + therapeutic (canalize cervix).
• MRI: Complex anatomy, neoplasm evaluation.

Management

• Cervical dilation: Hysteroscopic or blind (progressive dilators) – primary treatment.
• Stent placement: Temporary (Foley, stent) to maintain patency.
• Hormonal suppression: GnRH agonists, progestins, COCs to reduce endometrial activity/fluid production.
• Antibiotics: If infection suspected.
• Surgery: Cervical reconstruction, hysterectomy (definitive, if fertility not desired).
• ART: IVF may bypass cervical factor if tubes patent.

Prognosis

Good with cervical patency restoration. Recurrence common if underlying cause (radiation, malignancy, severe Asherman's) persists. Fertility potential depends on endometrial health and tubal status.