Today is World Rare Disease Day. This day has come to mean a lot to our family since Siena was diagnosed with Prader-Willi Syndrome, but this year it hits even closer to home. In January Siena spent a week at Nemours Children’s Hospital after they discovered an abdominal abscess causing a life threatening infection. Twice she had been sent home from a local hospital with the diagnosis of constipation, and I cannot even stomach to think about what could have been, were it not for our gut instincts, knowledge of PWS and guidance from Siena’s PWS specialist/endocrinologist. We still do not know what caused the abscess, and are left with more questions and more of the unknown.