Down Syndrome Related Diseases & Conditions

Medical conditions are often related to other diseases and conditions. Our doctors have compiled a list of ailments related to the topic of Down Syndrome. These conditions may be a cause or symptom of Down Syndrome or be a condition for which you may be at increased risk.

  • Hypothyroidism Hypothyroidism is any state in which thyroid hormone production is below normal. Normally, the rate of thyroid hormone...learn more »
    In This Article
    Hypothyroidism Article
    • Hypothyroidism facts
    • What is hypothyroidism?
    • What are the thyroid hormones?
    • Thyroid hormone regulation - the chain of command
    • What causes hypothyroidism?
    • What are the symptoms of hypothyroidism?
    • How is hypothyroidism diagnosed?
    • How is hypothyroidism treated?
    • What is subclinical hypothyroidism?
    • What's best for you?
  • Dementia Dementia is a significant loss of intellectual abilities such as memory capacity, severe enough to interfere with social or...learn more »
    In This Article
    Dementia Article
    • Dementia facts*
    • Introduction to dementia
    • What is dementia?
    • What are the different kinds of dementia?
    • Alzheimer's disease
    • Vascular dementia
    • Lewy body dementia
    • Frontotemporal dementia
    • HIV-associated dementia
    • Huntington's disease
    • Dementia pugilistica
    • Corticobasal degeneration
    • Creutzfeldt-Jakob disease
    • Other rare hereditary dementias
    • Secondary dementias
    • Dementias in children
    • What other conditions can cause dementia?
    • What conditions are not dementia?
    • What causes dementia?
    • What are the risk factors for dementia?
    • How is dementia diagnosed?
    • Is there any treatment for dementia?
    • Can dementia be prevented?
    • What kind of care does a person with dementia need?
    • What research is being done?
    • How can I help research?
    • Where can I get more information?
  • Seizure (Epilepsy) Epilepsy is a brain disorder in which the person has seizures. There are two kinds of seizures, focal and generalized. There are...learn more »
    In This Article
    Seizure (Epilepsy) Article
    • Epilepsy Facts*
    • Introduction
    • What is epilepsy?
    • What causes epilepsy?
    • What are the different kinds of seizures?
    • Focal seizures
    • Generalized seizures
    • What are the different kinds of epilepsy?
    • When are seizures not epilepsy?
    • First seizures
    • Febrile seizures
    • Nonepileptic events
    • Eclampsia
    • How is epilepsy diagnosed?
    • Can epilepsy be prevented?
    • How can epilepsy be treated?
    • How does epilepsy affect daily life?
    • Are there special risks associated with epilepsy?
    • What research is being done on epilepsy?
    • How can I help research on epilepsy?
    • What to do if you see someone having a seizure
    • Conclusion
    • Where can I get more information?
  • Ear Infection (Otitis Media) Middle ear infection or inflammation (otitis media) is inflammation fo the middle ear. There are two types of otitis media, acute...learn more »
    In This Article
    Ear Infection (Otitis Media) Article
    • Otitis media (ear infection or inflammation) facts
    • What is otitis media?
    • What are the symptoms of acute middle ear infection?
    • "Are ear infections contagious?
    • How common is acute otitis media?
    • Why do young children tend to have middle ear infections or inflammation?
    • How does the Eustachian tube change as a child gets older?
    • What microorganisms cause otitis media?
    • What is the relationship between bottlefeeding and middle ear infection or inflammation?
    • What are the risk factors for acute middle ear infection or inflammation?
    • How is otitis media diagnosed?
    • How is acute middle ear infection or inflammation treated?
    • Are there any home remedies for acute ear infection (otitis media)?
    • What causes chronic middle ear infection or inflammation?
    • What happens to the eardrum in chronic middle ear infection or inflammation?
    • What happens to the eardrum if a hole develops in the eardrum?
    • How is chronic middle ear infection or inflammation treated?
    • What are the goals of otitis media surgery?
    • What is serious middle ear infection or inflammation?
    • What limitations are there on a child with middle ear infection or inflammation?
    • Can otitis media (middle ear infection or inflammation) be prevented?
  • Sleep Apnea Sleep apnea is defined as a reduction or cessation of breathing during sleep. The three types of sleep apnea are central apnea,...learn more »
    In This Article
    Sleep Apnea Article
    • Sleep apnea facts
    • What is sleep apnea?
    • What are the types of sleep apnea?
    • What is central sleep apnea and what causes it?
    • What is obstructive sleep apnea and what causes it?
    • How common is obstructive sleep apnea?
    • What are obstructive sleep apnea symptoms?
    • What are some of the complications of sleep apnea?
    • How is obstructive sleep apnea diagnosed and evaluated?
    • What are the nonsurgical treatments for obstructive sleep apnea?
    • What are the surgical treatments for obstructive sleep apnea?
    • Why is it important to treat obstructive sleep apnea?
  • Testicular Cancer Testicular cancer symptoms include a painless lump or swelling in a testicle, testicle or scrotum pain, a dull ache in the...learn more »
    In This Article
    Testicular Cancer Article
    • Testicular cancer facts*
    • What is testicular cancer?
    • What are testicular cancer risk factors and causes?
    • How is testicular cancer detected? What are testicular cancer symptoms and warning signs?
    • How is testicular cancer diagnosed?
    • How is testicular cancer treated? What are the side effects of treatment for testicular cancer?
    • Is follow-up treatment necessary for testicular cancer? What does it involve?
    • Are clinical trials (research studies) available for men with testicular cancer?
  • Puberty The time when boys and girls begin the process of sexual maturation is called puberty. During this time, both sexes undergo a...learn more »
    In This Article
    Puberty Article
    • Puberty facts
    • What is puberty?
    • When does puberty occur?
    • What determines when puberty begins?
    • What are the physical changes of puberty in girls and boys?
    • What other changes in the body occur during puberty in boys and girls?
    • What are the medical concerns associated with normal puberty?
    • What are medical conditions associated with early or late puberty?
  • Cancer Cancer is a disease caused by an abnormal growth of cells, also called malignancy. It is a group of 100 different diseases, and...learn more »
    In This Article
    Cancer Article
    • Cancer facts
    • What is cancer?
    • What causes cancer?
    • What are cancer symptoms and signs?
    • What are the different types of cancer?
    • How is cancer diagnosed?
    • How is cancer staging determined?
    • What is the treatment for cancer?
    • What is the prognosis for cancer?
    • Can cancer be prevented?
    • Where can people find more information about cancer?
  • Celiac Disease Celiac disease is a condition in which a person has inflammation of the small intestinal mucosa when exposed to gluten in the...learn more »
    In This Article
    Celiac Disease Article
    • Celiac disease definition
    • What causes celiac disease?
    • What are the signs and symptoms of celiac disease?
    • Are there other diseases or conditions associated with celiac disease?
    • How is celiac disease diagnosed?
    • What is latent celiac disease?
    • What is silent celiac disease?
    • What is the treatment for celiac disease?
    • What is refractory celiac disease?
    • What is the treatment for refractory celiac disease?
    • What are the complications of celiac disease?
    • What is a gluten-free diet?
  • Alzheimer's Disease Alzheimer's disease is a common cause of dementia. Symptoms and warning signs of Alzheimer's disease include memory loss,...learn more »
    In This Article
    Alzheimer's Disease Article
    • Alzheimer's disease facts*
    • What is dementia?
    • What is Alzheimer's disease?
    • Who develops Alzheimer's disease?
    • What are the symptoms of Alzheimer's disease?
    • Ten warning signs of Alzheimer's disease
    • What are the causes Alzheimer's disease?
    • What are risk factors for Alzheimer's disease?
    • How is the diagnosis of Alzheimer's disease made?
    • What is the prognosis of a person with Alzheimer's disease?
    • What treatment and management options are available for Alzheimer's disease?
    • Cholinesterase inhibitors (ChEIs)
    • Partial glutamate antagonists
    • Non-medication based treatments
    • Treatment of psychiatric symptoms
    • Potential and future therapies for Alzheimer's disease
    • Caring for the caregiver and Alzheimer's disease resources
    • National Institute on Aging home safety for people with Alzheimer's disease
    • Introduction
    • General safety concerns for persons with Alzheimer's disease
    • Is it safe to leave the person with Alzheimer's disease alone?
    • Home safety room-by-room
    • Home safety behavior-by-behavior
    • Special occasions/gatherings/holidays
    • Impairment of the senses
    • Driving
    • Natural disaster safety
    • Who would take care of the person with Alzheimer's disease if something happened to you?
    • Conclusion
    • Additional resources
  • Menstruation Menstruation (menstrual cycle) is also referred to as a "period." When a woman menstruates, the lining of the uterus is shed....learn more »
    In This Article
    Menstruation Article
    • Menstruation facts*
    • What is menstruation?
    • What is the menstrual cycle?
    • What happens during the menstrual cycle?
    • What is a typical menstrual period like?
    • What kinds of problems do women have with their periods?
    • When does a girl usually get her first period?
    • How long does a woman have periods?
    • When should I see a doctor about my period?
    • How often should I change my pad/tampon?
  • Obesity Obesity is the state of being well above one's normal weight. A person has traditionally been considered to be obese if they are...learn more »
    In This Article
    Obesity Article
    • Obesity facts
    • What is obesity?
    • How common is obesity?
    • What are the health risks associated with obesity?
    • What causes obesity?
    • What are other factors associated with obesity?
    • How is body fat measured?
    • What about weight-for-height tables?
    • What is the body mass index (BMI)?
    • Does it matter where body fat is located?
    • What can be done about obesity?
    • What is the role of physical activity and exercise in obesity?
    • What is the role of diet in the treatment of obesity?
    • What is the role of medication in the treatment of obesity?
    • What about herbal fen/phen?
    • What about meal substitutes, artificial sweeteners, and OTC products?
    • What is the role of surgery in the treatment of obesity?
    • How can patients choose a safe and successful weight-loss program?
  • Pregnancy Symptoms (Am I Pregnant?) Pregnancy symptoms can vary from woman to woman, but some common symptoms include mood changes, headaches, lower back pain,...learn more »
    In This Article
    Pregnancy Symptoms (Am I Pregnant?) Article
    • 8 fast pregnancy symptoms facts
    • Pregnancy symptoms in general
    • 13 signs and symptoms of early pregnancy
    • 8 signs and symptoms of later pregnancy
    • 8 options for relief of pregnancy symptoms
  • Obsessive Compulsive Disorder (OCD) Obsessive compulsive disorder (OCD) is an anxiety disorder that causes a person to suffer repeated obsessions and compulsions....learn more »
    In This Article
    Obsessive Compulsive Disorder (OCD) Article
    • Obsessive compulsive disorder (OCD) facts
    • What is obsessive compulsive disorder (OCD), and what are OCD symptoms?
    • What causes OCD?
    • How is OCD diagnosed?
    • What are the treatments for OCD?
    • What happens if OCD is not treated? What are complications of obsessive compulsive disorder?
    • What is the prognosis for OCD?
    • How is OCD prevented?
    • Where can I get more information about obsessive compulsive disorder?
  • Adult ADHD (Attention Deficit Hyperactivity Disorder) Attention deficit hyperactivity disorder (ADHD) is a common childhood behavioral problem that may persist into adulthood. About...learn more »
    In This Article
    Adult ADHD (Attention Deficit Hyperactivity Disorder) Article
    • Adult attention deficit hyperactivity disorder (ADHD) facts
    • What is attention deficit hyperactivity disorder (ADHD)?
    • What are causes and risk factors for adult ADHD?
    • How prevalent is adult ADHD?
    • What are symptoms and signs of adult ADHD?
    • How is ADHD in adults diagnosed?
    • What is the treatment for adult ADHD?
    • Are there any home remedies for adult ADHD?
    • What are complications of adult ADHD?
    • What is the prognosis of adult ADHD?
    • Is it possible to prevent adult ADHD?
    • Are support groups available for those with adult ADHD?
    • Where can people find additional information on attention deficit hyperactivity disorder?
  • Miscarriage Miscarriage is the medical term for the spontaneous loss of pregnancy from conception to 20 weeks gestation. Risk factors for a...learn more »
    In This Article
    Miscarriage Article
    • What is a miscarriage?
    • How common is miscarriage?
    • What causes miscarriage?
    • What are the types of miscarriage?
    • What are signs and symptoms of a miscarriage?
    • How is miscarriage diagnosed?
    • What happens after a miscarriage?
    • What is the outlook for future pregnancies after a miscarriage?
    • Can miscarriage be prevented?
  • Autism Spectrum Disorder (In Children and Adults) Autism in children and adults is a developmental disorder, characterized by impaired development in communication, social...learn more »
    In This Article
    Autism Spectrum Disorder (In Children and Adults) Article
    • Autism facts
    • What is autism?
    • How does autism impact the family?
    • What are the different types of autism?
    • What are the symptoms and signs of autism in children and adults?
    • Impairment of social interaction and communication
    • Behaviors
    • What causes autism?
    • Is autism genetic?
    • Do vaccines play a role in autism?
    • How is autism diagnosed in children and adults?
    • How is autism treated in children and adults?
    • What common sociobehavioral interventions are used to treat autism?
    • What are the common medications used to treat the symptoms of autism?
    • Can diet and supplements play a role in the treatment of autism?
    • What is the prognosis for children and adults with autism?
    • For more information about autism in children and adults
  • Congenital Heart Defects Congenital heart defects are heart problems that are present at birth. Genetics may play a role in some heart defects. Symptoms...learn more »
    In This Article
    Congenital Heart Defects Article
    • Congenital heart defects facts
    • What are congenital heart defects?
    • How the heart works
    • What are the types of congenital heart defects?
    • What are other names for congenital heart defects?
    • What causes congenital heart defects?
    • What are the signs and symptoms and signs of congenital heart defects?
    • How are congential heart defects diagnosed??
    • How are congenital heart defects treated?
    • Living with a congenital heart defect
  • Hirschsprung's Disease Hirschsprung's disease (Hirschsprung), is a disease of the nerve cells of of the large intestine. The primary symptom of...learn more »
    In This Article
    Hirschsprung's Disease Article
    • What is Hirschsprung's disease?
    • What are the large intestine, colon, rectum, and anus?
    • Why does Hirschsprung's disease cause constipation?
    • What causes Hirschsprung's disease?
    • What are the symptoms of Hirschsprung's disease?
    • How is Hirschsprung's disease treated?
    • What will my child's life be like after surgery?
    • If I have more children, will they also have Hirschsprung's disease?
    • Hirschsprung's Disease At A Glance
  • Learning Disabilities Learning disabilities can cause an individual to have trouble learning and using skills such as reading, listening, writing,...learn more »
    In This Article
    Learning Disabilities Article
    • What are learning disabilities?
    • How common are learning disabilities?
    • What are the signs of a learning disability?
    • What about school and learning disabilities?
    • Tips for parents of children with learning disabilities
    • Tips for teachers of children with learning disabilities
    • Is there any treatment for learning disabilities?
    • What is the prognosis for learning disabilities?
    • What research is being done for learning disabilities?
    • For more information
  • ADHD (Attention Deficit Hyperactivity Disorder in Children) Attention deficit hyperactivity disorder (ADHD) is a mental-health condition that causes the following symptoms in children:...learn more »
    In This Article
    ADHD (Attention Deficit Hyperactivity Disorder in Children) Article
    • ADHD in children facts
    • What is ADHD?
    • What are risk factors and causes of ADHD in children?
    • What are signs and symptoms of ADHD in children?
    • Are there ADHD tests? How do physicians diagnose ADHD in children?
    • What are the treatments for ADHD in children? What are possible side effects of ADHD medications?
    • What are complications and the prognosis of ADHD in children?
    • Is it possible to prevent ADHD in children?
    • What is the latest research on ADHD in children?
    • Are there support groups for children with ADHD?
    • Where can people find more information on ADHD in children?
  • Childhood Obesity Fast food consumption and lack of exercise are just a couple of causes of childhood obesity. Health effects of childhood obesity...learn more »
    In This Article
    Childhood Obesity Article
    • Childhood obesity facts
    • What is childhood obesity? How is childhood obesity diagnosed?
    • How prevalent is childhood obesity?
    • What causes childhood obesity?
    • What are childhood obesity symptoms and signs?
    • What are risk factors for childhood obesity?
    • What are the risks, complications, and long-term health effects of childhood obesity?
    • What is the treatment for childhood obesity?
    • Can childhood obesity be prevented?
    • What research is being done on childhood obesity?
    • Where can people find more information on childhood obesity?
  • Ventricular Septal Defect A ventricular septal defect (VSD) is a congenital heart malformation. A VSD is a hole in the wall of the heart's two lower...learn more »
    In This Article
    Ventricular Septal Defect Article
    • Ventricular septal defect facts
    • What is a ventricular septal defect (VSD)?
    • How common is a VSD?
    • What is the normal design of the heart?
    • How do VSDs cause problems?
    • How is a VSD diagnosed? What are the symptoms of a VSD?
    • What if the VSD is small?
    • How is a small VSD treated?
    • What if the VSD is large?
    • How is a large VSD treated?
    • What types of surgery are available to correct a VSD?
    • What is the outlook (prognosis) after a VSD is repaired?
    • What are complications of VSD surgery?
    • What about unusual cases of VSD?
    • What are long-term precautions with VSDs?
  • Depression in Children Childhood depression can interfere with social activities, interests, schoolwork and family life. Symptoms and signs include...learn more »
    In This Article
    Depression in Children Article
    • Depression in children facts
    • What is childhood depression?
    • What are the types of depression in children?
    • What are causes and risk factors for depression in children?
    • What are the symptoms and warning signs of depression in children?
    • How is depression in children diagnosed?
    • What should parents do if they suspect that their child is depressed?
    • What is the treatment for depression in children?
    • What are complications of depression in children?
    • What is the prognosis of depression in children?
    • Can depression in children be prevented?
    • Where can families get support for a child with depression?
  • Leukemia Leukemia is a cancer of the blood-forming cells in the bone marrow. Fevers, night sweats, frequent infections, fatigue, weight...learn more »
    In This Article
    Leukemia Article
    • Leukemia Overview
    • More Leukemia Overview
    • Leukemia Causes
    • Leukemia Symptoms
    • When to Seek Medical Care
    • Leukemia Diagnosis
    • Leukemia Treatment
    • Leukemia Medical Treatment
    • More Leukemia Medical Treatment
    • Leukemia Medications
    • Leukemia Surgery
    • Leukemia Other Therapy
    • Leukemia Follow-up
    • Leukemia Prevention and Prognosis
    • Support Groups and Counseling
  • Depression Depression is a mental illness that affects 19 million Americans annually. Causes are genetic, environmental, and biological....learn more »
    In This Article
    Depression Article
    • Types of Depression
    • Depression Facts/Statistics
    • Causes of Depression
    • Symptoms and Signs of Depression
    • When to Seek Medical Care
    • Depression Diagnosis
    • Depression Treatment
    • Self-Care at Home
    • Medical Treatment
    • Depression Medications
    • Other Therapy for Depression
    • Alternative Treatments, Complementary Therapies, and Electroconvulsive Therapy
    • Follow-up
    • Depression Prevention
    • Depression Prognosis
    • Getting Help: Support Groups and Counseling
    • For More Information
  • Attention Deficit Hyperactivity Disorder (ADHD) in Teens Attention deficit hyperactivity disorder (ADHD) in teens is a disruption of neurocognitive functioning. Genetics contribute to...learn more »
    In This Article
    Attention Deficit Hyperactivity Disorder (ADHD) in Teens Article
    • ADHD in teens introduction
    • What causes ADHD in teens?
    • How do health-care professionals diagnose ADHD in teens?
    • What are the symptoms of ADHD in teens?
    • How does ADHD in teens affect executive function?
    • What kinds of difficulties do teens with ADHD face?
    • What are nonmedical treatment strategies for teen ADHD?
    • What stimulant medications are available to treat ADHD in teens?
    • What are the potential side effects of stimulant medications?
    • What non-stimulant medications are available to treat ADHD in teens?
    • What alternative treatments are available for ADHD in teens?
  • Childhood Obesity Obesity means an excess amount of body fat. No general agreement exists on the definition of obesity in children as it does...learn more »
    In This Article
    Childhood Obesity Article
    • Childhood Obesity Facts
    • Childhood Obesity Causes
    • When to Seek Medical Care
    • Diagnosis of Childhood Obesity
    • Childhood Obesity Treatment
    • Self-Care at Home
    • Follow-up
    • Prognosis of Obesity in Children and Adolescents
    • Support Groups and Counseling for Childhood Obesity
    • For More Information on Obesity in Children and Adolescents
    • Web Links
  • Parenting a Child With ADHD ADHD is a behavioral condition with characteristics that include hyperactivity, inattention, and impulsivity. Parenting a child...learn more »
    In This Article
    Parenting a Child With ADHD Article
    • Childhood ADHD facts
    • What are the signs and symptoms of childhood ADHD?
    • What should parents do if they suspect their child has ADHD?
    • What are the causes of childhood ADHD?
    • What should parents of children with ADHD expect from their child?
    • What treatment options exist for a child with ADHD?
    • What are the risks of the use of stimulant medication and other treatments?
    • What are other therapeutic approaches for children with ADHD?
    • Is childhood ADHD on the rise?
    • What is the outlook for a child with ADHD?
    • What can parents of children with ADHD do to help themselves?
  • Pregnancy Pregnancy occurs when an egg is fertilized by a sperm, grows inside a woman's uterus (womb), and develops into a baby. In humans,...learn more »
    In This Article
    Pregnancy Article
    • Pregnancy Overview
    • Pregnancy Causes
    • Pregnancy Symptoms
    • When to Seek Medical Care
    • Questions to Ask the Doctor
    • Pregnancy Tests
    • Pregnancy Treatment
    • Pregnancy Self-Care at Home
    • Pregnancy Medical Treatment
    • Pregnancy Medications
    • Pregnancy Follow-up
    • Pregnancy Prevention
    • Pregnancy Prognosis
    • Author and Editor
  • Autism Spectrum Disorder (ASD) FAQs Autism spectrum disorders (ASDs) are developmental disorders that do not appear to be linked to vaccines. More people than ever...learn more »
    In This Article
    Autism Spectrum Disorder (ASD) FAQs Article
    • Do vaccines cause autism spectrum disorders (ASDs)?
    • Is there an ASD epidemic?
    • Can adults be diagnosed with an ASD?
    • How many children with ASDs are being served through public special education programs?
    • Has the number of children being served under an ASD classification in public special education programs changed?
    • How do the rates of ASDs in special education compare with those of other special education categories?
    • What are mitochondrial diseases?
    • Is there a link between mitochondrial diseases and ASDs?

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