Precursors of IVF abortion
IVF abortion refers to the termination of pregnancy during assisted reproductive technology (ART). Although the success rate of IVF is increasing year by year, abortion is still a possible complication. Understanding the precursors of IVF abortion can help couples seek medical treatment as soon as possible and reduce the risk of abortion.
1. Early bleeding
Early bleeding is one of the common symptoms of IVF abortion. It usually occurs in the first three months of pregnancy, and may be caused by implantation bleeding or uterine shedding. However, early bleeding does not necessarily mean abortion, because some early pregnancy bleeding is normal. If there is vaginal bleeding of unknown cause, it is recommended to consult a doctor immediately for a pregnancy examination to eliminate the risk of abortion.
The early bleeding of IVF is usually related to the use of pregnancy aids, such as progesterone. Progesterone is a commonly used progesterone, which can maintain the stability of endometrium and help to maintain pregnancy. However, if the dosage is inappropriate or there are individual differences, progesterone may not play a role, leading to endometrial shedding and bleeding. Therefore, when IVF women have early bleeding, timely adjustment of progesterone dosage may help to avoid abortion.
In addition, endometrial polyps, hysteromyoma and other uterine structural abnormalities may also increase the risk of IVF early bleeding and abortion. Doctors can use ultrasound to determine whether the endometrial development and structure are normal, and whether surgical correction is required.
2. Low fetal heart rate
Fetal heart rate is an important indicator of fetal health. Low fetal heart rate may be one of the precursors of IVF abortion. The fetal heart rate is generally observed after 6 weeks, and the fetal heart rate can be detected by ultrasonic examination.
When the fetal heart rate of a test tube baby is below the normal range (usually less than 100 beats per minute), it may indicate abnormal fetal development or other potential problems. The doctor will usually recommend further examination to confirm the cause of the decreased fetal heart rate and take corresponding measures. Sometimes low fetal heart rate may occur temporarily, but if it continues to decrease, it may lead to termination of pregnancy.
In addition to fetal problems, maternal related factors may also lead to decreased fetal heart rate. For example, maternal cardiovascular diseases, pregnancy poisoning, etc. may affect the blood supply and oxygen supply of the fetus, thus affecting the fetal heart rate. Therefore, it is very important to carry out a comprehensive pregnancy examination as early as possible and understand the health status of the mother and fetus to prevent IVF abortion.
3. Abnormal progesterone level
Progesterone is an important progesterone, which plays a vital role in maintaining pregnancy. Abnormal progesterone level may be a risk factor for IVF abortion. The progesterone level can be determined through blood tests, usually once a week.
The progesterone below the normal level may indicate that the luteal function is insufficient, that is, the luteal body cannot effectively maintain pregnancy, which is easy to lead to abortion. Doctors may adjust the progesterone dose according to the test results to improve the chance of maintaining pregnancy.
Higher than normal levels of progesterone may be associated with polycystic ovary syndrome (PCOS), a common endocrine disorder. High progesterone level in PCOS patients may affect embryo implantation and increase the risk of abortion. The treatment for PCOS may include drug treatment, diet control, lifestyle adjustment and other comprehensive measures.
4. Uterine contraction and pain
Uterine contraction and pain may also be one of the precursors of IVF abortion. If a test tube baby woman feels uncomfortable in the uterine region or similar to menstrual pain, she should consult a doctor in time.
Uterine contractions and pain may indicate problems with embryos in the uterus, which may lead to termination of pregnancy. The doctor may determine the condition of the uterus through ultrasonic examination and put forward corresponding treatment suggestions according to the examination results.
Summary:
IVF abortion is a complication. Understanding its precursors is helpful for early intervention and treatment. Early bleeding, low fetal heart rate, abnormal progesterone level, uterine contraction and pain are possible precursors of IVF abortion. It is very important for IVF women to have regular pregnancy examinations, pay close attention to the changes of their own status, and seek medical advice in time. Early detection and appropriate measures can effectively reduce the risk of IVF abortion and improve the success rate of pregnancy.
