I saw that many pregnant mothers have questions about “fetal lateral ventricle widening or choroid plexus cysts” and decided to come here to answer their questions. The reason for many people’s fears is ignorance and therefore suspicion. Many expectant mothers are worried that “ventricular widening or choroid plexus cyst” will affect the fetal intellectual development, but this is not necessary because there is no evidence of the law of large numbers to prove that there is any connection between the appearance of this phenomenon and intellectual development, and the majority of fetal intellectual impairment is a genetic problem, that is, it is caused by a defective embryo. The majority of the fetal mental impairment is genetic, that is, the result of an unsound embryo, and the disturbance in development is minimal and not a cause for concern! In the past, it was thought to be a small probability, but with the development of ultrasound technology, the medical profession has gradually realized that most pregnant women have fetal lateral ventricular effusion in the middle pregnancy, so mothers-to-be should not mistake themselves as “different” or “minority”. “In fact, this is not the case. The main reasons why many pregnant women do not detect fetal lateral ventricular fluid are: a. The fluid is less than 1 mm, which is considered normal residual and not necessary to report. b. The examination period coincides with the time when the fluid has not yet formed or the fluid is just receding, so they think they have not had it, but in fact they have had it. A very small number of fetal choroid plexus cysts are caused by chromosome 18 variants without any cause, hardly caused by pollution and radiation, so it is ridiculous that many mothers-to-be suspect that they have suffered from pollution and radiation to cause fetal choroid plexus cysts, which is just a matter of luck and not caused by external causes. This is just a matter of luck and not caused by external factors. The screening for Down’s syndrome is mainly for chromosome 21 variants and does not prove the presence or absence of chromosome 18. Down’s screening is a routine mid-trimester test that is required even in the absence of a choroid plexus cyst. Most simple choroid plexus cysts (or small fluid dark areas) do not involve chromosomal variation and are formed mainly because the cerebrospinal fluid is produced at a higher rate than the middle cerebral aqueduct during the development of the fetal brain primordium. This means that the cerebrospinal fluid (which has an important role as a buffering system for brain tissue and as a means of transporting metabolites from brain cells) is produced faster than the formation of the cerebral aqueduct system (which is like a sewer), resulting in some degree of poor circulation or obstruction of the cerebrospinal fluid. The fetus forms the midbrain conduit system at about 26 weeks, so once the drainage system is formed, the circulation problem is then resolved and the fluid accumulation gradually disappears. Therefore, it is important to be clear that most of the fluid accumulation is not so much absorbed as it is reverted back to the normal circulatory system. Do not panic after finding a fetal choroid plexus cyst, the pregnant mother should keep a good attitude and theoretically crying once or twice has a progressive meaning for the growth of the fetus. Husbands should do their duty and try to open up and soothe the pregnant woman’s tension and put her heart at ease. Patience and supplementation is a more realistic approach, it is recommended to check out around 15 weeks, you can let pregnant women take Fosfom or continue to supplement folic acid for a month, encourage pregnant women to eat more fresh fish (especially the fish belly part), appropriate twice a week to eat large almonds (each should not be too much), do not eat eggs, you can drink pure milk, spend more money in large hospitals to buy regular DHA supplements interval a day if possible Take. You should not drink too much water, because we found in the diagnosis that most choroid plexus cysts are accompanied by a slight excess of amniotic fluid. Remember, don’t be blindly nervous or go for some risky tests indiscriminately, it is totally unnecessary. The current medical opinion is that there is no essential difference between cysts on one side and cysts on both sides, the key is the size. Therefore, most of the bilateral cysts should not be a cause for concern. Choroid plexus cysts are a normal phenomenon during fetal development, and it is certain that they will not affect the intelligence level of the child in the future, even if the fetus is born with a slight hydrocephalus, it will not affect the intelligence, and even if there is a serious hydrocephalus, it can be treated surgically. In clinical practice, we have seen many adults with choroid plexus cysts who developed like others. There was also a young man with ventricular widening who was incidentally found on trauma examination to have a ventricle occupying 1/3 of the cranial cavity, with normal developmental intelligence.