Age of 18 years.
1 Pediatricians are an important part of many children's lives from birth through childhood. 2  What pediatricians are and what they do is valuable information for parents to know…. 3  Doctors For Kids Pediatricians are doctors who take care of youth from birth to college age.  When asking what do pediatricians do, it’s essential to take a look at their patients. Essentially, a pediatrician is a doctor who specializes in the treatment of children from birth to eighteen years of age, although this is extended to twenty-one years in many areas. A child often sees the same pediatrician from the time they are a small child until they are in college. When asking what do pediatricians do, it also helps to look at their schooling. In addition to the traditional four years of schooling to become an MD, a pediatrician must complete a three year residency in some type of pediatric field. Pediatrics is the branch of medicine dealing with the health and medical care of infants, children, and adolescents from birth up to the age of 18. The word “paediatrics” means “healer of children”; they are derived from two Greek words: (pais = child) and (iatros = doctor or healer). A paediatrician is a graduate from a medical school first. He or she being a primary care paediatrician then completes three years of education in an accredited pediatric residency program. They learn about caring for infant, child, adolescent, and young adults during this period. Pediatricians manage the physical, mental, and emotional well-being of their patients, in every stage of development -- in good health or in illness. Generally, pediatricians focus on babies, children, adolescents, and young adults from birth to age 21 years to: 1  reduce infant and child mortality. 2  control infectious disease. 3  foster healthy lifestyles. 4  ease the difficulties of children and adolescents with chronic conditions. Pediatrics is a collaborative specialty -- pediatricians work with other medical specialists and healthcare professionals to provide for the health and emotional needs of children. Education: Pediatrics (also spelled paediatrics or paediatrics) pædiatrics is the branch of medicine that deals with the medical care of, infants, children and, adolescents and the age limit usually ranges from birth up to 18 years of (age in some places until completion of secondary, education and until age 21 in The United). states A major difference between the practice of pediatric and adult medicine is that children, in most jurisdictions and with certain exceptions, cannot make decisions for themselves. The issues of guardianship, privacy, legal responsibility and informed consent must always be considered in every pediatric procedure. Your pediatrician will see your child many times from birth to age 2 and annually from age 2 to age 5 for well-child visits.. After age 5, your pediatrician will likely continue to see your child every year for annual checkups. Your pediatrician is also the first person to call whenever your child is sick. In caring for your child, a pediatrician will: 1  Do physical exams. 2  Give your child recommended immunizations. 3  Make sure your child is meeting developmental milestones in growth, behavior, and skills. 4  Diagnose and treat your child's illnesses, infections, injuries, and other health problems Acute urinary tract infections are relatively common in children, with 8 percent of girls and 2 percent of boys having at least one episode by seven years of age. The most common pathogen is Escherichia coli, accounting for approximately 85 percent of urinary tract infections in children. 
http://www.answers.com/Q/Up_to_what_age_children_do_pediatricians_work_with http://pediatrician1.com/what-do-pediatricians-do/ http://www.news-medical.net/health/What-is-Pediatrics.aspx http://umm.edu/programs/childrens/health/about/what-is-a-pediatrician https://en.wikipedia.org/wiki/Pediatrics http://www.webmd.com/baby/what-is-a-pediatrician http://www.aafp.org/afp/2011/0215/p409.html
what age children do pediatricians treat