This book brings together a series of observations and osteopathic tests carried out on a group of 38 newborns in order to establish comparisons to highlight possible recurrences of osteopathic dysfunctions according to the circumstances of the birth. It is based on a study of the patient's globality, taking into consideration the different cranial, visceral and musculoskeletal spheres, as well as the attitude and the proper functioning of the child's suckling and breastfeeding mechanisms. It aims to establish potential alerts that the osteopath must have in mind when treating a baby and in particular according to the circumstances of its birth; but also in the older child and in the adult because the tissues keep the memories of our traumas throughout our life and thus can preserve even old lesions.