Pregnant? What nausea! Here are the causes

Who I am
Philippe Gloaguen
Author and references

Fonte: shutterstock

In this article

  • How frequent is it
  • When it occurs
  • The causes
  • Pregnancy, risk of miscarriage and nausea

Nausea in pregnancy: how frequent is it

A coffee? No thanks. A steak? Let alone. It may be that the thought of eating makes you nauseous and the smell of food forces you to leave the room as quickly as possible. In fact, nausea - and sometimes even vomiting - is quite a condition common in pregnancy.

According to the American Gynecologist Guidelines, only one in four pregnant women never experience these symptoms, while another in four suffers from nausea and even one in two from nausea with vomiting. Only in a few cases, nausea and vomiting become so important as to require hospitalization: we then speak of hyperemesis gravidarum.

Nausea: when is it checked? And when?

It's easy to say nausea. In fact, the manifestations of symptoms vary greatly from woman to woman. For example, they can be more or less intense, and manifest themselves in different times of the day. As the journalist Chiara Palmerini recalls in her book What mothers do not tell, even if we often talk about morning sickness, this annoying sensation can strike at any time, even in the afternoon or in the evening. Or even, for the unfortunate ones, even at night.

How long does pregnancy nausea last?

As for the duration, symptoms usually appear before 9 weeks and are resolved around at 16-20 weeks. If the nausea occurs later, it may be due to particular causes, such as metabolic or gastrointestinal disturbances.

Nausea is very annoying but take comfort: the baby is fine! Some research suggests that nausea is a positive sign for pregnancy

Causes of nausea in pregnancy

It is still not entirely clear why nausea occurs in pregnancy, however various hypotheses have been proposed to explain this.

The hormones

The most accredited calls into question the pregnancy hormones: it could be the rise in the levels of some hormones, in particular chorionic gonadotropin and estrogen, that cause the symptoms.

An evolutionary strategy

Nausea and vomiting could also be one evolutionary strategy to hold the woman and her baby away from potentially dangerous foods, especially in the first trimester, a very delicate moment in which the formation of the baby's organs takes place. In fact, some studies seem to suggest that in the first months of waiting women develop an aversion towards particularly harmful foods or substances, such as

  • alcohol,
  • coffee,
  • nicotine,
  • but also fish,
  • eggs
  • and meat

which, if eaten raw or undercooked, could be dangerous vehicles food infections.


Pregnancy, 18 foods to avoid or limit in the nine months of waiting

go to the gallery

Foods that are prohibited or restricted in the nine months of pregnancy. Find out what they are  

A hereditary component

What we do know is that there seems to be one as well hereditary or genetic component, so much so that women with mothers or sisters who have had hyperemesis gravidarum or who have suffered from it in previous pregnancies are more at risk of nausea and vomiting. Furthermore, the risk increases if the pregnancy is twins or molars.

Is not being nauseous good for the baby?

Sure, nausea is annoying, but it could have a positive side: according to surveys conducted by researchers Samuel Flaxman and Paul Sherman, of Cornell University in New York, those suffering from nausea have less likely to have an abortion compared to those who do not suffer from it.

Aren't you nauseous? lucky you

Who belongs to the category of women who, even in the first months of pregnancy, manage to climb mountains and do not feel any discomfort around the stomach ... well she must consider herself lucky. And don't ask yourself the problem because the problem isn't there. Each woman is a world and each pregnancy is unique.

Some women experience menstrual pain every month, while others play tennis quietly during their periods, similarly some pregnant women struggle with nausea and others don't.

Also read: Anti-nausea tips in pregnancy

  • nausea
  • vomiting
  • diet
  • coffee
  • smoke
  • alcohol
add a comment of Pregnant? What nausea! Here are the causes
Comment sent successfully! We will review it in the next few hours.