1. Introduction to Nausea and Vomiting of Pregnancy Morning sickness, medically designated as nausea and vomiting of pregnancy, is the most common medical condition encountered during the first trimester. Despite its colloquial name, the symptoms are rarely confined to the morning hours. The profound nausea and episodic vomiting can occur at any time, significantly impairing … Read more
1. Introduction Severe, all-day morning sickness is primarily caused by hyperemesis gravidarum, an exaggerated physiological response to rapidly rising levels of human chorionic gonadotropin and estrogen during early pregnancy. This intense hormonal surge hyperstimulates the emetic center in the brain, leading to persistent, unyielding nausea and vomiting that extends well beyond the morning hours. Comprehensive … Read more
1. Introduction Hyperemesis gravidarum is a severe, debilitating complication of pregnancy characterized by intractable nausea, relentless vomiting, and severe food aversion. While up to eighty percent of pregnant women experience standard “morning sickness” during their first trimester, hyperemesis gravidarum represents the extreme, pathological end of this spectrum. It is not merely a nuisance of early … Read more