Down Syndrome Overview Index

Featured: Down Syndrome Main Article

Down syndrome is a genetic disorder that is caused by an additional set of chromosomes in a developing fetus. Distinctive facial features, growth retardation, and decreased mental function and IQ are signs and symptoms of Down syndrome. Blood tests and ultrasound may be used to screen for Down syndrome but chromosome analysis of the fetus is needed to diagnose the condition. People with Down syndrome age more quickly and may develop Alzheimer's disease as young as age 40.

Patient Discussions - Viewers share their comments

    Related Diseases & Conditions

    • Cataracts A cataract is an eye disease that causes the eye's lens to become cloudy and opaque with decreased vision. Causes of cataracts...learn more »
      In This Article
      Cataracts Article
      • Facts about cataracts
      • What is a cataract?
      • What are the different types of cataracts?
      • What are causes of cataracts?
      • What are risk factors for cataracts?
      • What are the symptoms of cataracts?
      • What are the signs of cataracts?
      • How are cataracts diagnosed?
      • What is the treatment for cataracts?
      • What are the different types of cataract surgery, and what risks are involved?
      • What are complications of cataracts?
      • What is the prognosis of cataracts?
      • Can cataracts be prevented?
      • Where can people get more information on cataracts?
    • Diabetes (Type 1 and Type 2) Diabetes mellitus is a chronic condition characterized by high levels of sugar (glucose) in the blood. The two types of diabetes...learn more »
      In This Article
      Diabetes (Type 1 and Type 2) Article
      • Diabetes facts
      • What is diabetes?
      • What is the impact of diabetes?
      • What causes diabetes?
      • What are the different types of diabetes?
      • Type 1 diabetes
      • Type 2 diabetes
      • Other types of diabetes
      • What are diabetes symptoms?
      • How is diabetes diagnosed?
      • Why is blood sugar checked at home?
      • What are the acute complications of diabetes?
      • What are the chronic complications of diabetes?
      • What can be done to slow diabetes complications?
    • Glaucoma Glaucoma is a common eye condition in which the fluid pressure inside the eye rises because of slowed fluid drainage from the...learn more »
      In This Article
      Glaucoma Article
      • Glaucoma facts
      • What is glaucoma?
      • How common is glaucoma?
      • What causes glaucoma?
      • What are glaucoma risk factors?
      • What are the different types of glaucoma?
      • What are glaucoma symptoms and signs?
      • How is glaucoma diagnosed?
      • How often should someone be checked (screened) for glaucoma?
      • What is the treatment for glaucoma?
      • Glaucoma medications (eyedrops)
      • Glaucoma surgery or laser
      • Can glaucoma be prevented?
      • What is in the future for glaucoma?
    • Leukemia Leukemia is a type of cancer of the blood cells in which the growth and development of the blood cells are abnormal. Strictly...learn more »
      In This Article
      Leukemia Article
      • Leukemia facts*
      • What is leukemia?
      • What are the types of leukemia?
      • Who is at risk for leukemia?
      • What are symptoms of leukemia?
      • How is leukemia diagnosed?
      • How is leukemia treated?
      • How does someone get a second opinion about leukemia treatment?
      • What happens after treatment for leukemia?
      • How important is nutrition and physical activity for leukemia patients?
      • What sort of follow-up care do leukemia patients need?
      • What are some sources of support?
      • What research is being done for leukemia?
      • What resources are available to patients with leukemia?
    • Pregnancy Planning Pregnancy planning is an important step in preparation for starting or expanding a family. Planning for a pregnancy includes...learn more »
      In This Article
      Pregnancy Planning Article
      • Pregnancy planning facts
      • What is pregnancy planning?
      • What are pre-pregnancy planning goals?
      • What is a pregnancy calendar or calculator?
      • How soon can a woman start trying to conceive after stopping birth control?
      • What are dietary considerations for pregnancy planning?
      • How much weight gain is recommended in pregnancy?
      • What about alcohol consumption and pregnancy planning?
      • What infections should be avoided in pregnancy?
      • Should I exercise when pregnant?
      • Is it safe to have sexual intercourse during pregnancy?
      • Is air travel safe for pregnant women?
      • Do medications need to be stopped when planning pregnancy or when a woman becomes pregnant?
    • Turner Syndrome Turner syndrome is an inherited chromosomal condition affecting women. Women with Turner syndrome do not have ovarian function,...learn more »
      In This Article
      Turner Syndrome Article
      • Turner syndrome facts
      • What is Turner syndrome?
      • What are the symptoms of Turner syndrome?
      • How is Turner syndrome diagnosed?
      • What is the treatment for Turner syndrome?
      • Is Turner syndrome inherited?

Related FAQs, Doctor's & Expert's Views

Procedures & Tests

Health News

Health Features

Tools & References


Terms related to Down Syndrome Overview:

  • Trisomy 21