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

    • 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
      • Gynecomastia Facts
      • 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?
      • Surgical treatments
      • What are the complications of gynecomastia?
      • Can gynecomastia be prevented?
      • What is the prognosis for gynecomastia?
    • 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
      • Male breast cancer facts
      • 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?
    • Low Testosterone (Low T) Low testosterone (low-T) can be caused by hypogonadism, conditions such as type 2 diabetes, obesity, liver or kidney disease,...learn more »
      In This Article
      Low Testosterone (Low T) Article
      • Low testosterone (Low-T) definition
      • What are the "normal" levels of testosterone in men?
      • What causes low testosterone (Low-T)
      • What are the symptoms of low testosterone (Low-T)?
      • How is the diagnosis of low testosterone (Low-T) made?
      • How is low testosterone (Low-T) treated?
      • What are the risks of testosterone therapy?
      • What are natural ways of boosting your testosterone?
      • Should I take testosterone?
    • 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?
    • 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?
    • 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
      • Birth defects facts*
      • What are birth defects?
      • What causes birth defects?
      • What are the different types of birth defects?
      • What are the treatments for birth defects?

Procedures & Tests

Tools & References


Terms related to Klinefelter Syndrome:

  • XXY Chromosomes
  • XXY Males