This rare disease happens in about one in every 15,000 infants. This disease was found by Dr.Prader, Dr. Labhart, and Dr.Willi in 1956. Prader-Willi syndrome was named after Dr. Prader and Dr. Willi. Prader-Willi is a life-long disease. Your life is threatened by this disease, and it affects any kind of person, both male and female. It is a birth defect that is not inherited. The cause of Prader-Willi Syndrome is unclear. About 70% have a space deletion or other abnormal finding on chromosome 15. The rest have maternal chromosome 15s and no paternal 15. The risk of recurrence in a family is rare. The best estimate is said to be 1%. The diagnosis of little children with PWS is difficult. The infants that have PWS are louder than most other children, and they fall asleep more easily. In the womb, the babies movement is more than others.
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Normal Chromosome Layout for Gene 15 Chromosome Layout for Prader-Willi Back to Main Menu