Introduction - “Accidental falls from heights” or “accidental falls from windows” are a long-standing public health problem common to developed countries, primarily associated with high-rise housing. Method - A comprehensive survey of accidental falls involving children under 15 years of age was conducted from March 15 to October 15, 2006, in Île-de-France, Nord-Pas-de-Calais, and Provence-Alpes-Côte-d'Azur. Data collection was carried out by emergency response teams and hospital medical and paramedical staff. Results - A total of 106 accidental falls from windows were recorded in the three regions. The victims were primarily children under 6 years of age (62%), mostly boys (71%). In 32% of cases, a piece of furniture provided access to the window opening, and one in four children climbed the railing or the opening. In one-third of cases, the child fell while another person was in the same room. In the Île-de-France region, nearly half of the families were of non-European origin. Ten children (9%) died, and 19 children (18%) were left with a disability, including 7 with a severe disability. Discussion - The risk of falls due to lack of supervision must continue to be addressed through appropriate prevention campaigns. It is also necessary to undertake a review of the regulations governing the construction of guardrails and window opening systems. (R.A.)