I'm having a trans vaginal ultrasound. How long is the probe in my vagina?

Sonogram. The vaginal probe is placed only as long as needed to visualize the pelvic organs or pregnancy. Usually, a transvaginal ultrasound is no more than 10 minutes but can be shorter or longer.
Few seconds. Transvaginal ultrasound probe is used to get some clarification, to confirm what pelvic ultrasound already show-it usually take a few seconds only because it is somewhat uncomfortable to pts.