MedicineNet

Klinefelter Syndrome Index

Featured: Klinefelter Syndrome Main Article

Klinefelter syndrome, also referred to as XXY condition, is a genetic disease. Klinefelter syndrome affects mostly males. Symptoms include decreased testosterone levels, development of breasts, wider hips, and infertility. Some men with Klinefelter syndrome have no symptoms. Treatment includes educational, therapeutic, and medical therapy.

Patient Discussions - Viewers share their comments

    Related Diseases & Conditions

    • 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
      • 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?
    • Down Syndrome Down syndrome is a chromosomal disorder that results in the presence of an additional third chromosome 21, also referred to as...learn more »
      In This Article
      Down Syndrome Article
      • What is Down syndrome?
      • What are the chromosome basics of Down syndrome?
      • How do the extra genes lead to Down syndrome?
      • What are the risk factors for conceiving a child with Down syndrome?
      • What are the characteristic features and symptoms of Down syndrome?
      • What type of prenatal screening is available for Down syndrome?
      • How is the diagnosis of Down syndrome made?
      • What about cognitive impairment in Down syndrome?
      • What other conditions are associated with Down syndrome?
      • How is Down syndrome managed?
      • What about early intervention and education for Down syndrome?
      • What are the needs of infants and preschool children with Down syndrome?
      • How do adolescents with Down syndrome develop?
      • What should one expect for adults with Down syndrome?
      • Do individuals with Down syndrome work?
      • Where can I find clinical trials for Down syndrome?
      • Down Syndrome At A Glance
      • Where can I find more information about Down syndrome?
    • Birth Defects Birth defects have many causes and currently, are the leading cause of death for infants in the first year of life. Some of the...learn more »
      In This Article
      Birth Defects Article
      • What are birth defects?
      • What causes birth defects?
      • What are the different types of birth defects?
      • What are the treatments for birth defects?
    • Genetic Disease Genetic disease is a disorder or condition caused by abnormalities in a person's genome. Types of genetic inheritance include...learn more »
      In This Article
      Genetic Disease Article
      • What is a genetic disease?
      • What are the different types of inheritance?
      • Single gene inheritance
      • Multifactorial inheritance
      • Chromosome abnormalities
      • Mitochondrial inheritance
      • What is the human genome?
    • Male Breast Cancer Male breast cancer accounts for 1% of all breast cancers, and most cases are found in men between the ages of 60 and 70. A man's...learn more »
      In This Article
      Male Breast Cancer Article
      • What is male breast cancer?
      • How common is male breast cancer?
      • What are causes and risk factors of male breast cancer?
      • What are the different types of male breast cancer?
      • What are male breast cancer symptoms and signs?
      • How is male breast cancer diagnosed?
      • What is staging of male breast cancer?
      • What is the treatment for male breast cancer?
      • What is the outcome (prognosis) of male breast cancer?
      • Male Breast Cancer At A Glance
    • Gynecomastia Gynecomastia, an enlargement of the gland tissue in the male breast is the caused by an imbalance of hormones. Certain medical...learn more »
      In This Article
      Gynecomastia Article
      • What is gynecomastia?
      • What causes gynecomastia?
      • What are the risk factors for gynecomastia?
      • What are the symptoms of gynecomastia?
      • When should I call the doctor about gynecomastia?
      • How is gynecomastia diagnosed?
      • What is the treatment for gynecomastia?
      • What are the complications of gynecomastia?
      • Can gynecomastia be prevented?
      • What is the outlook for gynecomastia?
      • Gynecomastia At A Glance

Related FAQs, Doctor's & Expert's Views

Procedures & Tests

Tools & References

Glossary



Terms related to Klinefelter Syndrome:

  • XXY Chromosomes
  • XXY Males