The average height for a 9-month-old baby is around 28.5 inches (72.4 cm) for boys and 27.5 inches (69.9 cm) for girls. 9-month-old baby health At 9 months old, there are several health factors ...

Tips for Your Baby’s Ninth Month: Your 9-month-old is eager to move around. Give them plenty of opportunities to crawl, stand, and cruise -- with you nearby to supervise, of course.

Perceive objects in space. One of the biggest changes by 9 months is known as “object permanence.” If you show a 9-month-old baby an object and then hide the object while the baby is watching ...

9-Month-Old Baby: Developmental Milestones and Guidelines Medically reviewed by Katie Mena, M.D. — Written by Lindsey Gudritz on September 13, 2016 Movement ...

When Sarah Regan went to change her 9-month-old baby’s diaper she was horrified when she found it filled with blood. Panicking her baby girl Birdie could have a kidney infection, Regan, 38 ...

Learn about baby milestones in the first 12 months and what to expect from your infant in Month 9 of WebMD’s Baby Month by Month Guide.