What is a transvaginal scan? Is it very different from the belly ultrasound scan?


This method delivers clearer images and provides detailed information of the fetus. It is more useful in obese patients and women in the very early stages of pregnancy. The transducer is placed in the vagina after some lubricating gel is applied. Since the probe is very close to the uterus, higher resolution results. Fetal heart beat can be clearly captured as early as 6 weeks of gestation via a transvaginal scan. Doctors use this method to diagnose ectopic pregnancies, placenta problems and fetal abnormalities in the first trimester and congenital anomalies in the second trimester. Ultrasound on the belly is a traditional method in which the gel is placed on the abdomen. The gel and the hand-held probe transmit the sound waves. A full bladder is required for this unlike in the other method. Hardly any sensation is felt from the ultrasound waves but you may feel some discomfort with the transvaginal scan.