Disease at a Glance

"Cyclic vomiting syndrome (CVS) is a condition characterized by recurrent, prolonged episodes of severe nausea and vomiting. Episodes of vomiting may last hours or days. Other signs and symptoms during episodes may include intense sweating, paleness, weakness and fatigue, abdominal pain, diarrhea, fever, dizziness, and headache. Most people with CVS are symptom-free in between episodes, but some people have milder symptoms. The condition can begin at any age, but it most often begins in childhood. A subset of people with CVS also have neurologic or neuromuscular disorders; the condition in these cases is referred to as ""CVS plus."" The underlying cause of CVS is unknown. Data suggest there is a strong genetic component for CVS in children, involving changes in mitochondrial DNA. Many people with CVS report ""triggers"" for episodes, such as excitement, stress, infections, eating certain foods, and menstruation. People with a family history of migraines may be more likely to develop CVS."
Estimated Number of People with this Disease

This section is currently in development.

What Information Does GARD Have For This Disease?

Many rare diseases have limited information. Currently GARD is able to provide the following information for this disease:

*Data may be currently unavailable to GARD at this time.
When do symptoms of this disease begin?
This section is currently in development. 


This section is currently in development. We recommend speaking with a doctor to learn more about this disease. 


This section is currently in development. 

Last Updated: Nov. 8, 2021