Causes of down syndrome

Down syndrome is a genetic disorder where a child is born with one additional chromosome. Humans usually have 46 chromosomes but children suffering from Down syndrome have 47 chromosomes. This additional chromosome occurs due to incorrect cell division when the baby is in-uterus.

This condition leads to the inability to learn and function normally. Depending on the degree of the condition, there can even be physical disabilities along with learning limitations.


Causes of Down Syndrome

The main, immediate cause of Down syndrome is the presence of one additional chromosome.

Babies normally get 23 chromosomes from the mother and 23 chromosomes from the father. Each cell in the baby contains 23 genetic pairs of chromosomes that help the cell identify itself and grow. Sometimes one additional chromosome is passed on to the child. This additional chromosome can be passed on from either parent. In such cases the child has 47 chromosomes, leading to Down syndrome. The additional chromosome is usually an extra copy of the 21st chromosome. This condition is also known as Trisomy 21 and accounts for 95 percent of the cases in Down syndrome.


Common causes of Down syndrome are usually risk factors associated with the mother’s health at the time of conceiving a baby. Advanced maternal age is considered a big risk. If the mother’s age is 25 at the time of conceiving, the chances of a baby with Down syndrome are 1 in 1,250. As the mother grows older, these chances increase. At 40, her chances have increased to 1 in a 100.


Technology today can help identify babies and check their conditions even before they are born. If the mother is advanced in age and is pregnant, tests are often conducted to check if the baby has Down syndrome. There are no specific causes of Down syndrome during pregnancy other than the mother’s age. No activity or environment is known to trigger this condition.

Couples trying to have a baby late are usually advised to do a genetic profile to gauge the likelihood of Down syndrome.


A couple with one child suffering from Down syndrome has a higher likelihood of conceiving another child with Down syndrome. Either parent having the syndrome also increases the chance for the child to be born with this genetic condition.


There are no specific causes of Down syndrome in children other than being born with it due to an additional chromosome. This syndrome can affect the child’s quality of life and impair cognitive and physical development, depending on the severity.

Popular Posts

Steve Urkell aka Jaleel White Kicks Off DWTS New Season

Steve Urkell aka Jaleel White Kicks Off DWTS New Season

The new season of “Dancing with the Stars” kicked off Monday night in a premiere that the judges — including the hard-to-please Len Goodman — called the best first night of performances in the show’s history. “Family Matters” alum Jaleel White earned one of the highest scores of the evening, and host Tom Bergeron said [...]

Spa for weight loss

Spa for weight loss

In recent times a lot of emphasis has been placed by Americans on keeping fit. This is overdue. The number of obese and overweight individuals relative to the total population is enough to be a source of concern. Perhaps, it’s the price that we have to pay for our rapid development. The technological age has [...]

Brian Stann

Brian Stann

TRAINING: Team practice at 9:30, pad work at 4, grappling/wrestling at 5, strength and conditioning every Tuesday and Saturday. When and why did you start training for fighting? Combat is my profession and fighting was a great way to maintain a combat mindset while preparing to lead Marines in war. I began training in May [...]

Obesity and genetics information for better obesity treatment

Obesity and genetics information for better obesity treatment

Genetics was always considered to be an important factor in childhood obesity, but only in recent years, have we found out that it is actually the key factor. Studies now estimate that the effect of the individual’s genes accounts for nearly 90 to 95 percent of a person’s body fat or PBF especially in children. [...]

Building  Of Chest

Building Of Chest

Chapter 1: Anatomy of the Chest Let’s start off by explaining the anatomy of the chest. It’s not very complicated and not much to it. Once you understand how the chest works, you will find it easier to visualize your chest workouts. The chest is made up of two muscles: the pectoralis major and the [...]


Popular Article

  • 0
    Matt Hughes

    TRAINING: I lift weights every morning, and then do an intense workout in the evening.When and why did you start training for figh...

  • 0
    Caffeine for weight loss Caffeine for weight loss

    Caffeine is perhaps the most common substance that people resort to if they need to stay up late at night to work or study. Everyo...

  • 0
    How Add Zest Boring Broccoli Recipes Ask The Muscle Cook How Add Zest Boring Broccoli Recipes Ask The Muscle Cook

    Bland veggies suck! There might be a few kinds you don't mind eating plain, but sometimes it takes a pre-battle speech to get caul...

  • 0
    Illnesses for food poisoning or food borne Illnesses for food poisoning or food borne

    Food poisoning is caused due to bacteria that grows in food which has been stored for too long without proper care and refrigerati...

  • 0
    Tips to help you sleep Tips to help you sleep

    Adequate sleep is extremely essential for the proper functioning of a human being. Studies have shown that there is a significant ...

No Comments

    Leave a Comment