Vomiting is a common condition affecting about 50% of pregnant women, with another 25% having nausea. However, the incidence of<unk>  is only 0.3–1.5%. After preterm labor,<unk>  is the second most common reason for hospital admission during the first half of pregnancy. Factors such as infection with Helicobacter pylori, a rise in thyroid hormone production, low age, low body mass index prior to pregnancy, multiple pregnancies, molar pregnancies, and a past history of<unk>  have been associated with the development of<unk> .
Hyperemesis gravidarum
Hyperthyroidism
Postpartum blues
Urinary tract infection
Placenta praevia
Morning sickness  Morning sickness  1
Eclampsia
Puppy pregnancy syndrome