What causes pregnancy symptoms to disappear?

Every baby is the hope of a family, but often when the baby comes, pregnant mothers will have pregnancy reactions, not only food selection, loss of appetite, mild nausea and vomiting, dizziness, fatigue and other symptoms, but some pregnant mothers will have the pregnancy reaction disappear within a certain period of time. So what is the matter with the disappearance of the pregnancy reaction? Let me explain to you about the disappearance of the pregnancy reaction.

As long as there is no discomfort, pain or bleeding, pregnancy reactions are fine. Pregnancy reactions are different for everyone. The cause of pregnancy reactions is not yet fully understood. It is related to hCG, and the appearance and disappearance of symptoms are related to changes in hCG concentration in pregnant women. It is related to the nervous type. The nervous system function is unstable and it is more common in pregnant women with mental stress.

After pregnancy, the human chorionic gonadotropin (also known as HCG) in the body will rise rapidly. This hormone will cause a decrease in gastric acid secretion and a prolonged gastric emptying time, causing nausea, vomiting, fatigue and other discomforts. HCG proliferates rapidly after fertilization until the 8th week of pregnancy, then slowly decreases until the 18th to 20th week when HCG levels remain stable. After pregnancy, the body's estrogen and progesterone levels rise rapidly, stimulating the mammary glands and causing reactions such as breast swelling.

However, when fetal growth retardation occurs, the fetal bud or fetus in the gestational sac has stopped developing and gradually atrophied. The levels of HCG, estrogen and progesterone will drop rapidly, the effects on gastric acid secretion, gastric emptying and breasts will be reduced, and the feeling of pregnancy reaction will gradually alleviate. Therefore, if the early pregnancy reactions such as nausea and vomiting disappear and the feeling of breast swelling weakens, you should be vigilant, as these phenomena can be regarded as early symptoms of fetal growth retardation.

Fetal growth retardation is also clinically known as "missed abortion", which refers to the death of the intrauterine embryo at a certain stage of development and the cessation of further development, resulting in the termination of pregnancy before 28 weeks. If the expectant mother has amenorrhea for more than 6 weeks, but no gestational sac is found in the uterine cavity; or the gestational sac has been deformed and has no tension; if the diameter of the gestational sac exceeds 4 cm, but no fetal bud is seen; if the fetal bud exceeds 1.5 cm but no fetal heartbeat is seen; or if a routine examination finds that the normal fetal heartbeat has disappeared, it may be diagnosed as fetal growth retardation.

What is the matter with the disappearance of pregnancy reactions? I believe that after the above introduction, everyone has some understanding of this. If you suddenly find that the pregnancy reactions disappear, it is very likely that the fetus has stopped growing. At this time, pregnant mothers must be vigilant. It is best to go to the hospital for a detailed examination in time to avoid harming the baby and the pregnant mother herself.