Hyperemesis gravidarum (HG) is a severe form of morning sickness that affects a small percentage of pregnant women. Recent studies have found a link between HG and trauma, with women who have experienced trauma or stress in the past being more likely to develop HG during pregnancy. Trauma can lead to changes in the body's stress response system, causing constant nausea and vomiting associated with HG. It is important for healthcare providers to identify and support women at risk for HG, and therapy can help individuals manage symptoms of HG and address underlying trauma or stress.