Pediatrics diseases impact children during crucial developmental stages. Experts in this field address immune system abnormalities—both acquired and congenital, and provide guidance on travel vaccines. They specialize in treating infections caused by various pathogens, affecting different body systems. Pediatrics medicine recognizes the significance of age in understanding health and disease phenotypes, with age-related illness patterns documented in studies. Notably, there is a lack of published data categorizing prevalent Pediatrics disorders into age groups, highlighting a potential area for further research and classification.