Trisomy 18, also known as Edwards syndrome, is a condition in which a baby has an extra chromosome, chromosome 18. In babies with trisomy 18 the extra chromosome can disrupt the typical pattern of development.

Children diagnosed with trisomy 18 have a low birth weight, multiple birth defects and defining physical characteristics.

Resources

Support Organizations for Trisomy 18 and Related Disabilities is a network of families and professionals dedicated to providing support and understanding to families affected by this condition.

Trisomy 18 Foundation works together with community members to advance how Trisomy 18 is understood and how health professionals respond to parents who have received a new diagnosis.

National Organization for Rare Disorders is a non-profit patient advocacy organization dedicated to individuals with rare diseases and the organizations that serve them.