A pediatrician is a medical doctor who specializes in treating infants, children, adolescents, and young adults. Pediatric care can begin before conception and continue through pregnancy. According to the American Academy of Pediatrics, setting an upper age limit for pediatric care is not straightforward.

A pediatrician is a medical doctor who manages the physical, behavioral, and mental care for children from birth until age 18. A pediatrician is trained to diagnose and treat a broad range of childhood illnesses, from minor health problems to serious diseases.

A pediatrician is a medical doctor who specializes in providing care for children from birth through childhood. Pediatrics covers a wide array of health services, from preventative care to diagnosing and treating various diseases and illnesses.

Pediatricians are primary care doctors who specialize in children's health, including physical, mental, and social health. To be a pediatrician, doctors attend 4 years of medical school and spend 3 years as medical residents in pediatrics.

A medical doctor who specializes in this area is known as a pediatrician, or paediatrician. The word pediatrics and its cognates mean "healer of children", derived from the two Greek words: παῖς (pais "child") and ἰατρός (iatros "doctor, healer").