![]() ![]() Small pinky finger that points inward towards the thumb.Physical signs of Down syndrome are usually present at birth and become more apparent as your baby grows. Symptoms and their severity are different from person to person. Not all people with Down syndrome have all of these symptoms. diagnosed with Down syndrome.ĭown syndrome causes physical, cognitive and behavioral symptoms. There are about 200,000 people in the U.S. every year, which equals about 1 in every 700 babies. An estimated 6,000 babies are born with the condition in the U.S. How common is Down syndrome?ĭown syndrome is the most common chromosome-related condition in the United States. Since people AFAB younger than 35 have higher fertility rates, most babies with Down syndrome are born to people under 35. Women or people assigned female at birth (AFAB) who are 35 or older are more likely to have a child diagnosed with Down syndrome or another type of genetic condition. Studies suggest that the risk of giving birth to a child with Down syndrome increases as the birthing parent ages. Research is ongoing to learn more about the risk factors of Down syndrome. What are the risk factors for Down syndrome? People don’t usually inherit Down syndrome in an autosomal dominant or recessive pattern during conception when the egg and sperm meet. The majority of Down syndrome cases happen randomly (sporadically). It’s a genetic condition, and it doesn’t happen as a result of something that the parents did before or during pregnancy. Who does Down syndrome affect?ĭown syndrome can affect anyone. ![]() This changes the way their brain and body develop. A person diagnosed with Down syndrome has an extra copy of chromosome 21, which means their cells contain 47 total chromosomes instead of 46. Most people have 23 pairs of chromosomes within each cell in their body, for a total of 46. What is Down syndrome?ĭown syndrome is a genetic condition where people are born with an extra chromosome. Physical signs become more apparent as your child grows. Down syndrome can affect how your child develops. ![]()
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