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

The WF bikini body blitz

The WF bikini body blitz

The WF team are on a quest to get figure-fabulous in just four weeks. Follow our progress here… Never mind the weather, summer is officially here – and team WF are on a mission to get body-beautiful! Over four weeks we’ll be trialling pound-melting fitness routines, healthy home-delivery diets and supplements, super-slimming beauty products and [...]

Cancer in metastatic liver

Cancer in metastatic liver

There are two main types of liver cancer, primary and metastatic liver cancer. Cancer which develops in the liver itself is known as primary liver cancer while cancer which originates in other parts of the body and then affects the liver is known as metastatic liver cancer. Metastatic liver cancer normally develops in body parts [...]

Phlegm- cough up!

Phlegm- cough up!

Phlegm, a thick liquid secreted by the mucous membranes, is essentially a water based gel made up of immunoglobulins, lipids, and glycoproteins and its color may range from pale yellow to green. When you cough up phlegm it generally means that there is an infection of the lungs. Common cold, allergies, irritants, and bacterial or [...]

Workout Intense Fat Loss & Muscle Tone

Workout Intense Fat Loss & Muscle Tone

Workout Summary Main Goal:Lose FatWorkout Type:Full BodyTraining Level:IntermediateDays Per Week:2Equipment Required:Barbell, Bodyweight, Cables, Dumbbells, EZ Bar, Machines, OtherTarget Gender: Male & FemaleAuthor:M&S WritersWorkout Description This is a 2 day full body workout aimed at those individuals wanting fat loss and muscle tone. This routine was put to the test and after 4 weeks the clients [...]

Pria, Promax & WaferPro Bars Finish Strong-Protein Bars Reviewed

Pria, Promax & WaferPro Bars Finish Strong-Protein Bars Reviewed

PowerBar Pria Bars Review PowerBar is a great company for nutrition bars, and some of their other products include ‘PowerBars’, ‘Protein Plus Bars’, and ‘Triple Threat Crisp Bars’. Pria bars are another particularly delicious bar from PowerBar. It is nutritious, but it is also a snack. Each bar contains 3.5 grams of fat, 2.0 grams [...]


Popular Article

  • 0
    Vertigo’s predominant signs and symptoms Vertigo’s predominant signs and symptoms

    Vertigo is a rather common condition all over the world and can affect the person’s lifestyle to a substantial degree when faced...

  • 0
    Maximize Nutrition Help Reach Your Fat Loss Goals Maximize Nutrition Help Reach Your Fat Loss Goals

    Making dietary changes to promote weight loss can seem overwhelming at first, but once you learn some basics, you will be well on ...

  • 3
    Muscle Building Tips Muscle Building Tips

    1) Compound exercises are your best tools for growth. Use them.2) Eat your biggest meal of the day about 30 to 60 minutes after yo...

  • 0
    Disease of kissing Disease of kissing

    Given the fact that there are so many medical complications that we can be affected by, it helps to have a basic understanding of ...

  • 2
    Supplements for Bodybuilding Supplements for Bodybuilding

    People who workout and want to increase muscle mass in a short period of time often turn to bodybuilding supplements. With them, y...

No Comments

    Leave a Comment