Table II.

Development of the new classification system: CONUTA proposal for the classification of female genital tract malformations; it has been sent to the participants together with the results of the first round just before the questionnaire of the second round.

	Main class	Main sub-class	Co-existent sub-class
	Uterine anomaly		Cervical/vaginal anomaly
Class 0	Normal uterus		Cervix C0: Normal C1: Septate C2: Double ‘normal’ C3: Unilateral aplasia/dysplasia C4: Aplasia/dysplasia Vagina V0: Normal vagina V1: Longitudinal non-obstructing vaginal septum V2: Longitudinal obstructing vaginal septum V3: Transverse vaginal septum/imperforate hymen V4: Vaginal aplasia
Class I	Dysmorphic uterus	a. T-shaped b. Infantilis
Class II	Septate uterus	a. Partial b. Complete
Class III	Dysfused uterus (including dysfused ‘septate’)	a. Partial b. Complete
Class IV	Unilaterally formed uterus	a. Rudimentary horn with cavity (communicating or not) b. Rudimentary horn without cavity/aplasia (no horn)
Class V	Aplastic/dysplastic	a. Rudimentary horn with cavity (bi- or unilateral) b. Rudimentary horn without cavity (bi- or unilateral)/aplasia
Class VI	Unclassified malformations