A monocentric, prospective, comparative, and descriptive clinical study examining the uterine anteflexion angle before and after bladder emptying in nulliparous women with uterine anteversion. The study aims to assess how bladder fullness affects the anteflexion angle, which may impact the ease of intrauterine device (IUD) insertion. The primary objective is to determine the variation in the angle of anteflexion of the uterus before and after micturition in nulliparous women with uterine anteversion. Ultrasound measurements will be taken before and after bladder emptying. A secondary objective is to determine the prevalence of uterine anteversion in nulliparous women.

Inclusion Criteria:

• Women aged 18 and over;
• Nulliparous ;
• Feeling the need to urinate;
• Affiliated to a Social Security scheme.

Exclusion Criteria:

• Pregnant women;
• Desire of pregnancy with conception in progress;
• Primary amenorrhea ;
• Menopause ;
• Previous surgical termination of pregnancy;
• Previous medical abortion;
• Previous hysterectomy ;
• Previous conization;
• Absence of uterus;
• Irrepressible need to urinate;
• Inability or refusal to participate in the study.

All collected data that underlie results in a publication

Data will be available after the publication of result and ending fifteen years following the last visit of the last patient

Data access requests will be reviewed by the internal committee of Brest UH. Requestors will be required to sign and complete a data access agreement