Sonoma County Maternal Child and Adolescent Health

Birth Defects affect people

in each phase of life

The California Birth Defects Monitoring Program

leads in birth defect surveillance and education

Not all birth defects are preventable, but healthy lifestyle choices lower the risk of birth defects. A combination of Exposures and Risk Factors contribute to raising or reducing the chances of birth defects.

  • Environmental Factors, like infection, toxic chemical exposure, and substance use, are associated with 10% of birth defects.

  • Chromosomal Abnormalities play a role in 20% of birth defects.

  • 70% of Birth Defects have an unknown cause, but many are likely a combination of gene-environment interaction.

Click Here to Learn More about Risk Factors

Click Here to learn more about Genetic and Environmental Factors

The CDC offers educational resources,

research, data, and articles

Link to Resource:

10 things you need to know about birth defects.

How Common Are Birth Defects?

birth defects affect 1 in 33 babies and cause

1 in 5 infant deaths.

Did You Know?

Folic Acid supplements and Vaccinations can prevent birth defects.

Early Entry to Prenatal Care

can help ensure a healthy pregnancy

and a healthy baby

There is no 'Safe' amount of alcohol

while pregnant

avoiding alcohol can prevent birth defects

Sonoma County Maternal Child and Adolescent Health | Website

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