Nausea and Vomiting in Pregnancy is common occuring in up to 1 in 3-4 women. It usually happens before 9 weeks of the pregnancy, and if it happens after 9 weeks then other conditions must be looked for. The differential diagnosis of nausea and vomiting in pregnancy includes:

    Gastrointestinal conditions

    • Gastroenteritis
    • Gastroparesis
    • Achalasia
    • Biliary tract disease
    • Hepatitis
    • Intestinal obstruction
    • Peptic ulcer
    • Pancreatitis
    • Apendictis

    Conditions of the urogenital tract

    • Pyelonephritis
    • Uremia
    • Torsion of the ovary
    • Kidney stones
    • Uterine leiomyoma

    Metabolic Conditions

    • Diabetes
    • Porphria
    • Addison's disease
    • Hyperthyroidism
    • Hyperparathyroidism

    Neurology Disorders

    • Pseudotumor cerebri
    • Vestibular lesions
    • Migraines
    • CNS tumors
    • Lymphocytic hypophysitis

    Other Diseases

    • Drug toxicity
    • Drug intolerance
    • Psychologic conditions

    Pregnancy related

    • Acute fatty liver of pregnancy
    • Preeclampsia

    From: ACOG Practice Bulletin 2015