Animal bites can produce injuries of varying severity with risk and cosmetic squeals, infectious complications, emotional damage and high health care costs. In our country there are scarce and partial statistics and local epidemiology. The target of this research was the population of 1-15 years who attended health facilities in San Miguelito district during the months of January to June 2008. The general objectives of the study were to determine the incidence of children treated for dog bites and attacks, to describe the types of trauma and severity of physical injuries more frequent identification of the time, place, weather station and location of the area at the time of occur from aggression by the dog. We worked with two groups: children treated for other reasons (control group) and children treated for dog bites (experimental group). Variables such as sex, age, severity of the weather station attention and care to present were analyzed. With the results was possible to compile a profile of children who are affected by dog bites: bites on the face and upper limbs made by the dog house male minors from 1 to 5 years during the dry season. Other results were: increasing age of children decreases the number of patients and their bites are in the upper extremities, the incidence of dog bites in children 1 to 15 years was 33.3%. Using hypothesis tests, it was concluded that among children under 15 years, the proportion of people affected by dog bites is higher than the proportion of people affected by other causes of trauma.