Este trabajo se ha realizado ante el importante problema que supone los accidentes en todos los países del mundo. El objetivo primario ha sido el estudio de los accidentes domésticos y de ocio en la población en general, y proyectado sobre el conjunto de individuos accidentados que acudieron al Servicio de Urgencias del Hospital Nacional Marqués de Valdecilla en el periodo mencionado (36.388 accidentados, de ellos 18.951 varones y 17.437 mujeres). En la recogida de datos , se utilizó un modelo de ficha en la que figuraban las siguientes variables: -Fecha de tratamiento (año, mes, día), -Hora de asistencia, -Número de días de hospitalización, -Tratamiento y cuidados posteriores, -Edad del accidentado, -Sexo, -Mecánica del accidente, -Lugar del accidente, -Actividad realizada, -Diagnóstico de lesiones, -Parte del cuerpo afectada, -Producto implicado en el accidente, -Producto causante, -Descripción del accidente. Se estudiaron las distintas variables y la interacción entre ellas, para tener un conocimiento profundo de la realidad de los accidentes domésticos y de ocio. Estos accidentes originaron una gran demanda asistencial de urgencia, gran número de hospitalizaciones y estancias, así como de control sanitario en los centros de zona, ocasionando sufrimiento humano y gran carga económica. De este estudio se infiere el distinto papel que desarrolla cada sexo en la sociedad, a pesar de la igualdad teórica reconocida. Una vez estudiados estos accidentes nos permite sentar las bases para su prevención, y debido a que sobre ellos inciden gran número de variables, las medidas preventivas deben ser multifactoriales y factibles. / This work was made because of the important problem that these accidents suppose on all over the world.The primary aim was the study of the domestic and leisure accidents on the population in general, and as well as the inclusion of all the injured people who came to the National Marqués de Valdecilla Hospital Emergency Service, during the mentioned period (36,388 injured persons, 18,951 of them were men, and the remaining 14,437 were women).To gather information was used a standard form in which the following variables appeared:-Date of treatment (year, month, day).-Hour of attendance.-Number of days they stayed in the Hospital.-Treatment and following cares.-Age of injured person.-Sex.-Mechanics pertaining to the accident of the injured person.-Place where the accident took place.-Activity done when the accident took place.-Injury diagnosis.-Part of the body affected.-Product involved in the accident.-Causing product.-Description of the accident.Different variables and the reciprocal influence between them were studied, in order to have a profound knowledge of the reality in the domestic and leisure accidents. These accidents originated a great demand in urgent attendance, a great number of hospitations and stays, as well as the health control in local centres. All of this causes human suffering and as well as a great economical cost.From this study you can conclude the different role that is allotted to each sex in the Society, in spite of the theoretical equality accepted of both sexes. Once we have studied the accidents, this allowed us to stablish the rules in order to take precautions against them. Due to the great number of variables that affect them, the preventive measures must be multifactorial and feasible.