How are prenatal ultrasounds done?
Most prenatal ultrasound procedures are done on your skin, with a special gel helping with the image quality. A transvaginal ultrasound is an alternative procedure in which the doctor inserts a tubular probe into the vaginal canal. It may be used early in pregnancy to get a clearer view of the uterus or ovaries if a problem is suspected. It can also be used to determine how far along you are in your pregnancy (gestational age). Transvaginal ultrasound is also used to check the cervix for problems such as shortening which may raise your risk of early labor.
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