Patient's question:
NoDoctor's answer:
Regarding the causes of vomiting in the early stages of pregnancy, it is not yet fully understood, and it may be related to human chorionic gonadotropin (hCG) and psychological factors. After a woman becomes pregnant, the placenta secretes hCG, and the secretion of this hormone begins to increase after 6 weeks of pregnancy. This leads to a decrease in gastric acid secretion and a weakening of gastric motility, causing water and food to accumulate in the stomach, which can easily result in vomiting.