If you’ve ever been around teenagers, then you’ve seen how fast boys can grow between the ages of 14 and 17. For those with Klinefelter, some never experience puberty while others begin to develop late. To be clear, not every case of a delayed growth spurt is the result of Klinefelter. Malnutrition, poor eating habits, and smoking are just some of the things that can delay puberty. When Klinefelter is responsible for the delay, however, it’s because estrogen is preventing the body from beginning puberty.
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