CVS in Children

Cyclic vomiting syndrome, or CVS, is an illness characterized by recurring periods of severe nausea and vomiting that can last for several days. It was initially recognized in children but it can affect anyone of any age.


Uncontrollable vomiting and severe nausea are the primary symptoms of CVS. Listlessness, abdominal pain, drooling, extreme thirst, headache, fever and diarrhea may also be present.


There is not a test that can detect CVS, so it’s necessary to monitor the patterns of vomiting over a period of time before a diagnosis can be made. A complete medical history, physical examination, and blood work will be performed to rule out other illnesses.


Stress or excitement can induce an episode of vomiting. According to the National Institute of Diabetes and Digestive and Kidney Diseases, episodes can also be triggered by colds, allergies, the flu, overeating, exhaustion, menstruation and consumption of chocolate or cheese.


CVS can cause severe dehydration and tooth decay due to excessive vomiting. The esophagus can be damaged by the regurgitation of acid and develop irritation that causes bleeding or tears.


Medications may be prescribed to prevent or eliminate vomiting and intravenous fluids may be required if severe dehydration occurs. Increasing the intake of fluids and getting adequate amounts of rest are recommended.

Cyclic vomiting syndrome