Uterine Sounding

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While applying counter-traction with the tenaculum, pass the uterine sound into the endometrial cavity, to determine its depth and to dilate the cervical os. This sometimes requires gentle force, but caution must be exercised to avoid uterine perforation.

This process is usually uncomfortable for the patient, so having her take a deep breath as you insert the sound is often helpful. Occasionally cramping will persist after removal of the sound. The sound, like the biopsy device, should touch only the cervix and the sterile field so as not to contaminate it.

In this image: The uterine sound tool determines the depth of the endometrial cavity and dilates the cervical os. Click on the image to enlarge it for more detail.

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