Sound waves travel best through fluid, so a full bladder moves gas and bowel out of the way and gives us a clearer view of your uterus and ovaries. That’s the only way we can see clearly when scanning on top. You’d be surprised, many patients actually prefer the transvaginal ultrasound since you don’t have to drink water, but it really depends on what your doctor orders. A transvaginal won’t always give the best results for every situation. As always, you never have to do anything you’re uncomfo