Nausea and vomiting affect 50-90% of pregnancies. Although
referred to as 'morning sickness' the nausea and vomiting in
pregnancy may occur throughout the day. Nausea and vomiting
affect 50-90% of pregnancies (1). Beginning from before 9 weeks
gestation it most commonly resolves between 10 and 16 weeks
gestation (2). Although referred to as 'morning sickness' the
nausea and vomiting in pregnancy may occur throughout the day.
Nausea and vomiting in pregnancy is thought to be associated
with raised thyroxine levels and Human Chorionic Gonadotropin
(HCG) or suppressed Thyroid Stimulating Hormone (TSH) levels.
There is no good evidence to support psychological and
behavioural theories (1). It is important that other causes of
nausea and vomiting be ruled out. Idiopathic nausea and vomiting
in pregnancy must be distinguished from nausea and vomiting in
pregnancy of known causes such as hydatiform mole or multiple
gestation. The physical and emotional impact of nausea and
vomiting in pregnancy often results in feel