I don't know about sonograms & age, I had one done when I was in my teens & again when I was 25 or 26. I went due to menstrual problems (which have been cleared up fairly well by the pill) & they wanted to check me for endometriosis, fibroids & cysts. Anyway, both times they told me to have a full bladder so they can get a clear picture... I thought for the first one it would be the one on the surface of the abdomen like a pregnant woman, but no - this was a wand w/a condom on it which was inserted into my vaginal canal & moved around by the technician. It was completely pain-free, took maybe 20 minutes & was less uncomfortable than getting a PAP smear or vaginal exam done.

However, the second time around was embarrassing because the technician was a beautiful Russian, & considering what they were doing to me, I found myself getting very aroused by the whole scenario...