Morning sickness is the term applied to nausea and vomiting occurring usually in the early stages of pregnancy. It is attributed to a surge in hormone levels associated with the early phase of pregnancy. Often mild, and occurring in the mornings, symptoms may however be severe, often lasting the whole day. It may be incapacitating, and interfere with food intake. It may also become protracted.

Morning sickness responds extremely well to acupuncture therapy. Initial response to therapy is short-term, but effects are cumulative, resulting in resolution of the problem.