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On October 28, 2023, the day of her baby shower, Nevaeh Crain woke up with a headache. Shortly after, the 18-year-old, who was six months pregnant, developed a fever followed by nausea and vomiting.
In February 2024, during her 29th week of pregnancy, Ms McIntyre started being sick while eating. "I basically choked on [the vomit] and it went straight onto my lungs," said Ms McIntyre.
Despite the name, nausea or vomiting can occur at any time during the day. [2] Typically the symptoms occur between the 4th and 16th weeks of pregnancy. [2] About 10% of women still have symptoms after the 20th week of pregnancy. [2] A severe form of the condition is known as hyperemesis gravidarum and results in weight loss. [1] [6]
Vomiting is a common condition affecting about 50% of pregnant women, with another 25% having nausea. [48] However, the incidence of HG is only 0.3–1.5%. [4] After preterm labor, hyperemesis gravidarum is the second most common reason for hospital admission during the first half of pregnancy. [16]
Most often, nausea and vomiting symptoms during pregnancy resolve in the first trimester, however, some continue to experience symptoms. Hyperemesis gravidarum is diagnosed by the following criteria: greater than 3 vomiting episodes per day, ketonuria, and weight loss of more than 3 kg or 5% of body weight.
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Although described as "morning sickness," pregnant women can experience this nausea any time of day or night. The exact cause of morning sickness remains unknown. Nausea and vomiting in pregnancy is typically mild and self-limited, resolving on its own by the 14th week of pregnancy. Other causes should also be ruled out when considering treatment.
Some 70% of women experience nausea and vomiting during pregnancy, and until now, an underlying cause was unknown. Scientists discover cause of pregnancy morning sickness, test cures Skip to main ...