What are the causes of Down's syndrome in children?
summary
Down's syndrome in children is a congenital disease. It is a chromosomal disease that has been determined for a long time. 60% of the children died early in the fetus. The survivors have obvious mental retardation, special face, growth and development disorders and multiple malformations. The child has obvious special facial signs, such as wide eye distance, low and flat nasal root, small eye fissure, etc. The hair is soft and thin. What are the causes of Down's syndrome in children? Now let me tell you something.
What are the causes of Down's syndrome in children?
Down's syndrome in children is caused by a series of genetic diseases. Trisomy of chromosome 21 is the main cause of the disease. Trisomy 21 is the most common chromosomal variation, which is not directly related to race and living standard. We should keep these knowledge in mind!
Older primiparas increase the risk of Down syndrome. With the increase of maternal age, the phenomenon of chromosome non separation will increase in the process of egg formation. But, on the other hand, about 80% of the babies with the syndrome are born to mothers under the age of 35.
It is generally believed that children with mental retardation, brain is usually too small. The cerebellum, brainstem and forebrain are very small. The progress of education will be undermined by diseases and disabilities, such as recurrent infectious diseases, heart disease, hearing loss, etc. Other physiological features caused by the disease include distorted facial features such as ape wrinkles. Some patients with Down's syndrome will suffer from depression due to stress after their youth.
matters needing attention
Down's syndrome in children is a congenital disease. It is a chromosomal disease that has been determined for a long time. 60% of the children died early in the fetus. The survivors have obvious mental retardation, special face, growth and development disorders and multiple malformations.