Introduction: A study has been realized on infantile obesity due to the increase of the overweight and the obesity in children and teenagers, constituting a problem of health that we have wanted to value and to quantify in Primary care, to delimit his impact and to begin to take preventive measurements for control. Material and methods: Transverse study based on children from 6 to 11 years of a rural population of the province of Almeria. Results: It parts with the same one, that the students from 6 to 11 studied years of age, 12,10 % was suffering obesity and 29,30 % it had overweight, with a prevalence as a whole of obesity and overweight of 41,40 %. Conclusion: The results alert us on the problem of health in the children, remaining with high frequency the overweight and the obesity in the adult age and the associate pathology.