text: about a transabdominal ultrasound....? this may be a stupid question... but can a transabdominal ultrasound be perfomed when a woman is on her period? what about a transvaginal one?   sorry about the stupid question. both studies can be done when a woman is on her period.  a transvaginal ultrasound might be embarrasing/messy for the patient, so if you are worried about that, then schedule at a different point of your cycle.  we do transvag u/s on women who are bleeding and at risk for miscarriage routinely.