Nausea and vomiting in pregnancy is a common physiological condition in pregnant women. It is usually sporadic, often in the morning, which can affect the quality of life of the pregnant woman without any change in her metabolic state. When the condition is aggravated, with continuous and intense vomiting which makes it impossible to follow a correct diet, we are faced with a hyperemesis gravidarum (HG) which can lead to dehydration, nutritional deficiencies and metabolic changes. On many occasions this may require hospital treatment to correct the water and electrolyte changes and the multiple digestive tract and neurological complications.
There is a multitude of conditions between simple gestational vomiting and HG with intermediate levels of intensity, without any clear differences in pathological origin.