Parents and CaregiversPatient Stories Bad Nutrition? Or HPP? March 10, 2017 Share on Facebook Video Playerhttps://s3.amazonaws.com/Alexion/movies/Orlando+06+Brown+Family+5+MinuteV3_1.mp401:5500:0006:16Use Up/Down Arrow keys to increase or decrease volume. Being the parent of a young child with hypophosphatasia (HPP) can be a challenge. But getting a confirmed diagnosis of HPP can be confusing and lead to an ongoing struggle.