When do the signs of hyperemesis gravidarum typically begin?

The signs of hyperemesis gravidarum typically begin between 4 and 6 weeks of pregnancy. This condition is characterized by severe nausea and vomiting that can lead to dehydration and weight loss, unlike the more common morning sickness that many pregnant individuals experience.

Hyperemesis gravidarum is thought to be linked to rising levels of hormones, especially human chorionic gonadotropin (hCG), which spike around this time in early pregnancy. Recognizing the onset of symptoms during this period is crucial for early intervention and management, helping to mitigate complications such as dehydration and nutrient deficiencies for both the pregnant individual and the developing fetus. Understanding this timeline is essential for anyone working in emergency medical services, as it enables them to recognize when a patient may be experiencing this more severe form of nausea and vomiting in pregnancy.