Oct 29, 2024 · Klinefelter syndrome occurs because of a random change in the egg or the sperm that causes a baby assigned male at birth to be born with an extra X sex chromosome.

Klinefelter syndrome (KS), also known as 47,XXY, is a chromosome anomaly where a male has an extra X chromosome. [10] The complications commonly include infertility and small, poorly …

Oct 9, 2023 · Klinefelter syndrome is a common genetic condition in which males have an additional X chromosome. Symptoms may include breast growth, infertility, osteoporosis and …

What is Klinefelter syndrome? Most men are born with a pair of XY chromosomes, while most females are born with pair of XX chromosomes. Klinefelter syndrome occurs when a male is …

Dec 20, 2023 · KS describes a set of physical, language, and social development symptoms in males who have an extra X chromosome. Its main feature is infertility. Outward signs of KS …

Oct 28, 2024 · Klinefelter syndrome, also known as XXY syndrome, is a condition in boys and men that’s caused by an extra X chromosome. It can affect physical and mental development.

Dec 11, 2025 · Klinefelter syndrome is a genetic condition that affects only males. Here's what you should know about the causes, symptoms, and treatment options for the condition.

Klinefelter syndrome affects about 1 in 650 male newborns. It is the most common sex chromosome disorder, which is a group of conditions caused by changes in the number of sex …

Aug 11, 2025 · Recognition and treatment of Klinefelter syndrome is important for prevention or treatment of its consequences, such as micropenis, learning disabilities, delayed puberty, …

Dec 4, 2025 · Klinefelter syndrome, disorder of the human sex chromosomes that occurs in males, one of the most frequent chromosomal disorders in males. It results from an unequal …