Infant Milestones

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Medical Author:

David Perlstein, MD, MBA, FAAP

David Perlstein, MD, MBA, FAAP

Dr. Perlstein received his Medical Degree from the University of Cincinnati and then completed his internship and residency in pediatrics at The New York Hospital, Cornell medical Center in New York City. After serving an additional year as Chief Pediatric Resident, he worked as a private practitioner and then was appointed Director of Ambulatory Pediatrics at St. Barnabas Hospital in the Bronx.

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Medical Editor:

William C. Shiel Jr., MD, FACP, FACR

William C. Shiel Jr., MD, FACP, FACR

Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

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• Infant Milestones Introduction
• The First Month
• Age 1-3 Months
• Age 4-7 Months
• Age 8-12 Months
• On to Toddlerhood
• When to Seek Medical Care
• For More Information
• Web Links
• Synonyms and Keywords
• Authors and Editors
• Babies FAQs
• Viewer Comments: Infant Milestones - Tracking

Babies grow at an amazingly fast rate during their first year of life. In addition to babies' physical growth in height and weight, babies also go through major achievement stages, referred to as developmental milestones. Developmental milestones are easily identifiable skills that the baby can perform, such as rolling over, sitting up, and walking. These milestones are usually classified into three categories: motor development, language development, and social/emotional development.

Babies tend to follow the same progression through these milestones. However, no two babies go through these milestones at exactly the same time. Babies also spend different amounts of time at each stage before moving on to the next stage. Contact your health care professional if you have any concerns about your baby's development.

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