A pediatrician, a doctor specializing in the treatment of infants and children.

An informal term for any doctor who treats very young children, not necessarily a pediatrician.

छोटे बच्चों के लिए चिकित्सा करने वाला डॉक्टर

English Usage: We took our daughter to a baby doctor for her cold.

Hindi Usage: हम अपनी बेटी को उसके जुकाम के लिए शिशु डॉक्टर के पास ले गए।