Ultrasonography is done with a ‘microphone’ that emits sound waves and picks them up again. The sound waves are converted into images. The examination is carried out on the exposed part of the body on which gel is applied. The gel will be removed afterwards. The ultrasound takes about 20 minutes and is neither painful or dangerous. An inner vaginal ultrasound is performed if the uterus and / or ovaries should be assessed. This is done with a “probe” that will be placed intravaginal.