All you need to know about morning sickness

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How do I know if I've got it?

Easy - you can't stop throwing up and often eating or drinking makes it worse, leading to sudden weight loss. Some sufferers also get ptyalism - they can't swallow their own saliva without vomiting.

Other symptoms include dark-yellow urine, dry mouth and lips, urinating less than usual and feeling tired, sad or anxious.

Why does it happen?

No-one knows, although many doctors believe it may be rapidly rising levels of hCG, the hormone secreted by the foetus. Normal morning sickness is caused by a slower rise of this.

Can it harm the baby?

Occasionally, but if the mum gets proper medical attention, the baby is usually fine. In severe cases, the baby is born prematurely or with a lower-than-average birth weight.

Is it dangerous to let it go on untreated?

Yes, severe dehydration can be life threatening.

What treatment is there?

Some doctors won't prescribe anti-nausea drugs such as Zofran, as there's a lack of research into the long-term effects on the baby, though many believe there are none. If your GP prescribes anti-sickness drugs (eg: Stemetil, Zofran, or Maxallon), they should explain the risk.

If you have it once, will you have it the next time, too?

Many women go on to have healthy, happy further pregnancies after really suffering the first time round.

Where can I get more info?

Get more information about morning sickness in our Health section. Dedicated websites, such as www.hyperemesis.org.uk, www.morningsicknesshelp.com and www.helpher.org, also have great fact sheets.

By goodtoknow

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