
Did you know that about 3 out of every 100,000 kids have Cyclic Vomiting Syndrome (CVS)? This condition, which usually starts between 3 and 7 years old, can cause dehydration and is often misdiagnosed by doctors. Let’s learn more about cyclic vomiting syndrome and its symptoms.
What is Cyclic Vomiting Syndrome (CVS)?
Cyclic vomiting syndrome, or CVS, is a functional disorder of the digestive system that causes sudden, repeated, and severe episodes of feeling sick and vomiting. It has a particular pattern of symptoms, with no symptoms in between episodes, and is caused by a miscommunication between the brain and gastrointestinal tract.
Who Is Most At Risk For Developing This Illness?
- Cyclic vomiting syndrome (CVS) is most common in children between the ages of 3 and 7 years old.
- There is a peak incidence of CVS around age 5 in children.
- CVS affects approximately 60% of women and 70% to 80% of people with a history of migraines.
What Can Cause A CVS Episode?
- Emotional triggers such as anxiety or panic attacks
- Stress
- Physical exhaustion
- Prolonged fasting
- Respiratory infections or flu
- Menstrual periods
- Motion sickness
- Reactions to certain foods such as chocolate, paneer, caffeine, or MSG (monosodium glutamate)
- Seasonal changes, with symptoms more common in fall and winter
How Is Cyclic Vomiting Syndrome (CVS) Caused?
- The cause of CVS is not fully known, but mitochondrial dysfunction may play a role
- Changes in mitochondrial DNA can occur due to illness, genetic conditions, certain drugs, or exposure to toxins
- CVS may be more common in those with a family history of migraines






