This is the gentical type of chromosome abnormality, charecterised by the presence of one extra X chromosome in a male. learning disability, low muscle tone, delayed growth, hypogonadism and some birth defects are commonly seen with this scenario. It is not an inherited disease. No absolute cure. Treatment depends on the type of symptoms. Managed by a teame of Specialists, like Neurologist, endocrinologist, cardiologist, speech therapist etc.