Nausea and vomiting in early pregnancy are common and are most likely to be caused by changes in the hormone levels. Vomiting occurs most frequently in the morning, but it may occur at any time. It is sometimes precipitated by stress, travelling, or food. In rare cases, the vomiting becomes severe and prolonged. This can cause dehydration, nutritional deficiency, alterations in blood acidity, and weight loss. Immediate hospital admission is then required to replace lost fluids and chemicals by intravenous infusion, to rule out any serious underlying disorder, and to control the vomiting.
Vomiting in pregnancy |
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