Signs and Symptoms of Klinefelter Syndrome
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Motor Skills
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The added X-chromosome may slow motor development in male children, causing delays in crawling and walking.
Infertility
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According to Medicinenet.com, nearly 99 percent of the males afflicted with Klinefelter syndrome are infertile because they are unable to produce an adequate amount of sperm.
Appearance
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Males with Klinefelter syndrome tend to be taller and grow less facial hair than males without the condition. Klinefelter syndrome can also increase the probability that these males will develop a weight problem as they age.
Breast Symptoms
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Klinefelter syndrome can cause the male's breasts to become tender to the touch, and it can also increase the odds of breast cancer.
Intellectual Development
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Males with Klinefelter syndrome tend to take longer to learn to read and write. They display normal levels of intelligence, but these levels develop later.
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