A survey conducted between May and September 2005 in the Île-de-France region identified 67 "accidental falls from a great height," often referred to simply as "defenestrations," among children under the age of 15. Most of these children were under 6 years old (72%), and the majority were boys (72%). More than half of these children’s families were of non-European origin, particularly from Sub-Saharan Africa. In 32% of cases, the fall occurred even though the window opening had safety guards. A piece of furniture was located beneath the window or was moved by the child in 55% of cases; 33% of the children climbed the railing or the window opening. In one-third of cases, the child fell while someone else was in the same room. Seven children (10%) died, and 8 children (12%) suffered lasting injuries. The risk of falls due to lack of supervision, which is often overlooked by adults, must be addressed through prevention campaigns. To prevent falls, regulations governing the construction of guardrails and window openings must be revised.