Ultrasonic diagnosis of threatened abortion

Some small stretching movements or emotional instability during pregnancy may cause vaginal bleeding. Therefore, if a pregnant woman has a threatened miscarriage, she should go to the hospital for a gynecological examination and ultrasound diagnosis in time. So what is the ultrasound diagnosis of threatened miscarriage? Let's take a look.

Generally, the main symptom of threatened abortion is a small amount of vaginal bleeding after pregnancy. Depending on the amount of bleeding and the time it accumulates in the vagina, the color can be bright red, pink or dark brown. Sometimes it is accompanied by mild lower abdominal pain, a feeling of falling when the fetus moves, backache and abdominal distension. According to folk tradition, the main basis for threatened abortion is "seeing blood".

The diagnosis can be made based on the medical history and clinical manifestations. Sometimes, it is necessary to combine gynecological examination, B-ultrasound, blood hCG and other physical examinations or auxiliary examinations to make a clear diagnosis and classify the types of miscarriage. For early pregnancy, especially threatened miscarriage not long after menstruation, the main thing is to observe the possibility of continuing pregnancy. Therefore, it is very important to use B-ultrasound to diagnose threatened miscarriage.

Through vaginal B-ultrasound examination, the gestational sac can be seen about 35 days after the last menstrual period, and the primitive heart tube pulsation of the fetus can be seen after 42 days; through abdominal B-ultrasound, the gestational sac can be seen 35 to 42 days after the last menstrual period, and the primitive heart tube pulsation of the fetus can be seen 49 days after the last menstrual period.

Therefore, continuous B-ultrasound monitoring can be performed when threatened abortion is found. If only the gestational sac is seen but the fetus is not seen for a long time, or the fetal bud is seen but the fetal heart rate is not seen for a long time, it indicates a poor prognosis. At 49 to 70 days of pregnancy, the fetal heart rate can be heard by Doppler, and the fetal heart rate can be heard from the abdomen by lifting the uterus through bimanual examination. In order to reduce B-ultrasound examinations in early pregnancy and shorten the waiting time, pregnancy tests and blood progesterone level measurements can be performed.

Ultrasound diagnosis of threatened abortion can provide a clearer understanding of embryo development and can better help doctors treat threatened abortion.