Back to Health A to Z. Chromosomes are packages of genes found in every cell in the body. There are 2 types of chromosome, called the sex chromosomes, that determine the genetic sex of a baby.
Klinefelter syndrome is a fairly common genetic condition found in males only. Many boys with Klinefelter syndrome — also known as XXY syndrome — have no signs or symptoms, and some don't even know they have it until later in life. The XXY condition that causes Klinefelter syndrome can't be changed, but medical treatment and working with therapists can help a boy's development and help lessen the condition's effects.
Victorian government portal for older people, with information about government and community services and programs. Type a minimum of three characters then press UP or DOWN on the keyboard to navigate the autocompleted search results. Klinefelter syndrome is a chromosome disorder that affects males.
Klinefelter syndrome is a condition that occurs in men as a result of an extra X chromosome. The most common symptom is infertility. Humans have 46 chromosomes, which contain all of a person's genes and DNA. Two of these chromosomes, the sex chromosomes, determine a person's gender.
Disorders of the sex chromosome like disorders of the autosomes can be either numerical or structural, and can be present in all cells or in a mosaic form. Clinical indications that should raise suspicions of a sex chromosome abnormality are:. These disorders are considered very common with incidence of about —
Sex Chromosome Abnormalities. The majority of known types of chromosomal abnormalities involve sex chromosomes. In frequency of occurrence, they are only slightly less common than autosomal abnormalities.
Klinefelter syndrome is a genetic condition that results when a boy is born with an extra copy of the X chromosome. Klinefelter syndrome is a common genetic condition affecting males, and it often isn't diagnosed until adulthood. Klinefelter syndrome may adversely affect testicular growth, resulting in smaller than normal testicles, which can lead to lower production of testosterone.
Klinefelter syndrome - Chromosome X. Its signs and symptoms vary among affected individuals and may include small testes that do not produce enough testosterone, which causes a delay of puberty or incomplete puberty, gynecomastia, reduction of facial and body hair and infertility; cryptorchidism; hypospadias and micropenis. Other physical changes associated with Klinefelter syndrome may include radioulnar synostosis, clinodactyly in the fifth finger and flat feet; hypotonia and coordination problems that delay the development of motor skills. Older children and adults with Klinefelter syndrome tend to be taller and have a higher risk of developing type 2 diabetes, blood clots, tremors, breast cancer and systemic lupus erythematosus, although the likelihood of developing these alterations is similar that of women in the general population.
Klinefelter Syndrome kline-fel-teralso known as 47,XXY, is a genetic condition where you have an extra X chromosome. Klinefelter Syndrome is a common chromosomal disorder, affecting one in men. However, many people with Klinefelter Syndrome are never diagnosed.