Book excerpt: Hip dysplasia affects 1 in 1,000 babies, either as developmental hip dysplasia (DDH) or congential hip dysplasia (CDH). With this condition, the child's hip joint structure does not fit together normally and the problem can grow worse as the child grows. If untreated, the condition can cause serious hip problems in adulthood. Fortunately, this condition responds well to medical treatment and this book guides concerned parents through all of the options and obstacles of treating a child with hip dysplasia. The book covers hip anatomy, risk factors, how diagnosis is made, how to communicate with doctors about the condition and covers harnesses, braces, casts, surgery and potential complications for children ages 0-17. The book, also, addresses the special care needs of children with hip dysplasia and how to manage pain at home.