Can vaginal ultrasound detect pregnancy

A vaginal ultrasound can usually detect pregnancy. Vaginal ultrasound examination can clearly observe the structure of the gestational sac or embryo in the uterus, and is one of the important diagnostic methods for early pregnancy.

Vaginal ultrasound uses a high-frequency probe to scan the uterus up close, and the gestational sac in the uterine cavity can be detected around 5 weeks of pregnancy. After 6 weeks, fetal buds and primitive heartbeats can be observed. Its resolution is higher than that of abdominal ultrasound, especially suitable for obesity, posterior uterine position, or situations that require early diagnosis. During the examination, the bladder needs to be emptied and the probe should be placed in the vagina without ionizing radiation, which is safe for the embryo. In rare cases, false negative results may occur, such as short conception time, ectopic pregnancy, or technical factors. If the blood HCG is positive but no intrauterine gestational sac is found by negative ultrasound, abnormal pregnancy should be ruled out based on clinical manifestations and other examinations.

It is recommended that women with a history of amenorrhea choose the appropriate time for examination under the guidance of a doctor, as early examination may not show signs of pregnancy. Before the examination, there is no need to go on an empty stomach, and wearing loose clothing is convenient for operation. If diagnosed with pregnancy, regular prenatal check ups should be carried out according to medical advice, avoiding vigorous exercise and maintaining balanced nutrient intake. Daily supplementation of folic acid tablets in early pregnancy can help promote fetal neural tube development. If you experience abdominal pain or vaginal bleeding, seek medical attention immediately.