Severe morning sickness, or hyperemesis gravidarum, can cause low birth weight and fetal growth retardation. The volume of fluid in the blood vessels may be decreased. The blood flow to the placenta and fetus is also decreased, and less oxygen and nutrients are be delivered to the baby. Low birth weight is often linked with poorer mental function and reduced overall health of the baby. The treatment of morning sickness depends on how severe it is.
Conservative treatment is tried first.
This includes adjustments to the diet and lifestyle. The mother is advised to avoid things that produce the symptoms, such as certain foods and smells. She should eat smaller, more frequent meals. Dry crackers or toast, tea, cold liquids, and carbonated drinks may help lessen morning sickness. Eating before getting out of bed may help prevent the nausea.