Cesarean section represents a risk for women and newborns, and has been associated with pathologies in childhood. Objective: To determine the statistical behavior of asthma, bronchial hyper-reactivity and diabetes in children up to 12 years old according to the route of birth in Montería. Methodology: Analytical and descriptive study, based on information from 275 surveys of relatives of children under 12 years of age attended by any of the causes of morbidity under study at the San Jerónimo de Montería Hospital, a database was configured in Microsoft Excel and it was attached to the statistical package SPSS25. The analysis was based on descriptive statistics and correlation with Pearson's Chi-square test and "Z" test, determining the relationship between diseases and the route of birth. Results: 50.2% of the children were male. A statistically significant relationship was observed between diabetes and the cesarean birth route (p-value <0.05), there was no relationship with respiratory diseases. Conclusions: Cesarean section was the predominant birth route, significantly related to diabetes in the study population.