The primary cause of Down syndrome is the presence of an extra chromosome 21, which occurs due to a random error in cell division called nondisjunction. This extra genetic material affects the development of the individual. Down syndrome can be diagnosed during pregnancy through prenatal screening tests, including blood tests and ultrasound, or after birth through physical examination and genetic testing. Understanding the causes and diagnostic methods is crucial for early intervention and support.




By becoming part of our passion and dedication to the Down syndrome community. We invite you to join in making a significant difference that brings about positive change to individuals, impacts the lives of those we advocate for but also forge lifelong friendships in building a more compassionate world. Together we can create a brighter future!
Celebrate positive abilities and support a fulfilling inclusive life for individuals with Down syndrome across Canada.