Nausea and vomiting are common symptoms of pregnancy: they are part of the morning sickness that affects most pregnant women. However, hyperemesis gravidarum is a severe and persistent case, and only affects around 2% of pregnant women.
It can lead to further complications at the level of the kidney. It affects the muscles, the electrolyte balance, and can cause depression, ketonuria, and weight loss. Significant weight loss can cause even more complications such as low birth weight, premature delivery, antepartum haemorrhage.
Its consequences can negatively impact on the foetus: the child can be prematurely born, be small relative to its gestational age, with low birth weights.
The condition requires hospitalisation for 1 to 5 % of patients.
It might be recurring for women having suffered from the condition in their first pregnancy.