Manuscrit, 107 pages, biblio 24 ref.The newborn genetic screening for Sickle cell disease (SCT) has taken place on the whole national French territory since year 2000 as a measure for immediate pediatric care and counseling for the purpose of preventing complications of the disease. In spite of this, a few children still die, which seems to be related to the lack of appropriate reaction from the parents toward urgency hospital services. This study aims to answer some of the practitioners' questions upon the families' difficulties in accessing Health care and structures of Hôpital Necker-Enfants-Malades, considering the specificity of this population mostly from Caribbean and African origin. This three years research shows several aspects wi...