What causes hyperemesis in patients with hydatidiform mole?

Updated: Feb 16, 2018
  • Author: Lisa E Moore, MD, MS, FACOG, RDMS; Chief Editor: Warner K Huh, MD  more...
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Patients may also report severe nausea and vomiting. This is due to extremely high levels of human chorionic gonadotropin (hCG). This is reported to occur in 4% of patients diagnosed at 5-9 weeks of gestation, and in 23% when the diagnosis is made after 10 weeks' gestation.

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