Health encyclopaedia

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Morning sickness

Many women have nausea or vomiting during early pregnancy. Despite being called morning sickness, some women find the feeling of nausea or sickness can occur at any time throughout the day.

In a few cases, symptoms last the whole day. In most cases morning sickness is mild and needs no treatment. It is a normal part of early pregnancy.

Very rarely vomiting is so severe (hyperemesis gravidarum) that it leads to dehydration (when you are low in body fluid) and serious weight loss, and needs to be treated in hospital.

Most women find that the nausea or sickness is worst at about 9-10 weeks of pregnancy and is over by the 14th week.

A week-by-week guide to your pregnancy

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