Home Hospitalization (HAD) is a specific hospital structure. It is adapted to the care of patients with complicated chronic diseases. This care “lingers on” due to technical progress (we no longer die, we become “chronic”). Their profiles no longer correspond to those of patients requiring short-term conventional hospitalization. No other structure can replace it. It is elected by plebiscite by the users who have had the occasion to experience it under good conditions. The patient’s entourage finds itself in a prominent role. It ensures some savings in regard to full-time hospitalizations for which it substitutes while procuring safe, high-quality care. Nevertheless, it remains practically unknown and undeveloped in the midst of a plethora of diversified health care options. This paradox has both its roots and its resolution in the historical and regulatory evolution of Home Hospitalization. That is what this article wishes to illustrate. Firstly, the author will outline the arguments of this paradox. Then she will show how, from its origins to the present day, HAD has gone through four historic phases. The first three contributed to the establishment of this paradox. The last, current phase, is attempting to rid itself of this same paradox and make HAD an original, efficient, satisfying method of hospitalization.