Causes of pregnancy vomiting in test tube infants
In vitro fertilization (IVF) means that couples with difficulty in conceiving can successfully conceive through IVF. However, in the process of IVF, many expectant mothers will face pregnancy reactions, the most common of which is pregnancy vomiting. Pregnancy vomiting brings great trouble to the body and mood of expectant mothers. The causes of pregnancy vomiting will be described in detail below.
Hormone changes
Pregnancy vomiting is one of the common symptoms of IVF mothers, and hormonal changes are one of the main causes of pregnancy vomiting. During IVF, expectant mothers will experience dramatic changes in hormone levels, especially increased secretion of progesterone and human chorionic gonadotropin. The drastic changes of these hormones will have an impact on the mother's body, which will lead to pregnancy vomiting.
The specific mechanism of hormonal changes leading to pregnant vomiting is not completely clear, but studies have found that pregnant vomiting is closely related to the level of progesterone. Progesterone is considered to be an important regulator of pregnancy vomiting, and its increased secretion will stimulate the mother's vomiting center, thus causing pregnancy vomiting.
In addition, human chorionic gonadotropin also plays an important role in early pregnancy. It can not only promote embryonic development, but also regulate mother's physical functions, including gastrointestinal movement and intestinal peristalsis, leading to vomiting symptoms.
Gastrointestinal changes
In the process of IVF, a series of changes will also occur in the gastrointestinal tract of expectant mothers, which are also related to pregnancy vomiting. Changes in the gastrointestinal tract will lead to decreased digestion and absorption of food, which will lead to pregnancy and vomiting.
First, in the process of IVF, expectant mothers' gastric emptying time was significantly prolonged. This means that the food stays in the stomach for a longer time, increasing the secretion of gastric acid, and easily stimulating the mother's vomiting center.
Secondly, the muscle movement of gastrointestinal tract also changes, which may be related to the influence of hormones. Slow movement of the gastrointestinal tract will lead to food stagnation in the digestive process, increasing the risk of ulcers and heartburn, which will lead to pregnancy and vomiting.
In addition, expectant mothers may need to use large doses of ovulation promoting drugs in the process of IVF. These drugs may also have adverse effects on the gastrointestinal tract, such as anorexia, gastrointestinal dysfunction, etc., which may lead to pregnancy vomiting.
psychological factor
The process of IVF is a hard journey for mothers. Many expectant mothers are under great psychological pressure in the process of IVF. Psychological pressure is also an important factor in pregnancy vomiting.
Research shows that psychological pressure can trigger stress reaction in the body, leading to increased secretion of epinephrine and norepinephrine, thus affecting the activities of the sympathetic nervous system, leading to gastrointestinal dysfunction, gastrointestinal motility disorder, and finally leading to pregnancy vomiting.
Other factors in IVF
In addition to hormonal changes, gastrointestinal changes and psychological factors, there are other factors that may lead to pregnancy vomiting during IVF.
First of all, the success rate of IVF is very high, but not every embryo can be successfully implanted into the uterus. When the embryo transfer fails, the expectant mother may have a psychological gap, which may lead to pregnancy vomiting.
Secondly, IVF needs long-term or short-term hormone treatment, which will also have an impact on the mother's body. Hormone treatment may lead to weight gain, intestinal dysfunction, etc., which may lead to pregnancy and vomiting.
In addition, in the process of IVF, stimulating operations such as egg taking and embryo transfer may be required for many times, which may cause certain stimulation to the mother's body and may also cause vomiting.
summary
Test tube baby vomiting is a common problem for expectant mothers. The reasons can be explained from hormonal changes, gastrointestinal changes, psychological factors and other factors in the process of test tube baby. Understanding the causes of pregnancy vomiting can help expectant mothers better cope with this problem, alleviate discomfort, and ensure the smooth progress of IVF process.
