Why do morning sickness symptoms automatically subside after 12 weeks?

Patient's question:

No

Doctor's answer:

Hello, generally yes. Morning sickness refers to a series of reactions that occur in the early stages of pregnancy (around six weeks after the menstrual period), when the levels of human chorionic gonadotropin (HCG) in a pregnant woman increase, leading to reduced gastric acid secretion and prolonged gastric emptying time. This results in symptoms such as dizziness, fatigue, loss of appetite, a preference for sour foods or an aversion to greasy foods, nausea, and morning vomiting. These symptoms usually do not require special treatment. After the 12th week of pregnancy, as the levels of HCG in the body decline, the symptoms often naturally subside.

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