(Monthly) National Trisomy Awareness Month

Celebrated on 03/01/2026

Quick Fact

Trisomy Awareness Month, observed in October, was established to educate the public about trisomy conditions like Down syndrome (Trisomy 21), Edwards syndrome (Trisomy 18), and Patau syndrome (Trisomy 13). An interesting fact is that while Trisomy 21 is the most common, Trisomy 18 and 13 are much rarer and often more severe, with most affected infants not surviving past their first year.

Origins and Establishment of (Monthly) National Trisomy Awareness Month

National Trisomy Awareness Month was first recognized in October 2012, following a grassroots effort by parent advocacy groups and medical professionals to increase public understanding of trisomy conditions. The movement was spearheaded by organizations like the Trisomy 18 Foundation and the Support Organization for Trisomy 18, 13, and Related Disorders (SOFT), who sought to dedicate a month to raising awareness, promoting research, and supporting families affected by these genetic disorders.

Evolution and Modern Commemoration

Since its inception, Trisomy Awareness Month has grown significantly, with hospitals, schools, and community groups hosting events such as awareness walks, educational seminars, and social media campaigns. The month is marked by wearing blue and yellow ribbons, sharing personal stories, and lighting landmarks in these colors. In recent years, the focus has expanded to include celebrating the lives of individuals with trisomies and advocating for inclusive healthcare and education.

Facts & General Observations

• Trisomy 21 (Down syndrome) occurs in about 1 in 700 births, while Trisomy 18 and 13 occur in about 1 in 5,000 and 1 in 10,000 births, respectively.
• The risk of having a child with a trisomy condition increases with maternal age, especially after age 35.
• Despite significant medical challenges, many individuals with Trisomy 21 live into their 60s, while those with Trisomy 18 and 13 have a median survival of less than a year.

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