Hello and welcome to ehealth. Does she drink milk/fomula? Are you or hubby small?

That isn't an unhealthy weight for 12 months. My daughter is 20 months and only weighs 21 pounds. The doctor said although it's small for her age, it's not unhealthy or uncommon.

My daughter was about 18 lbs when she turned one, in fact she was close to two before I was able to turn her around in her car seat. Where is she on the doctors growth chart? Our doc always said that as long as they are in the "normal" range, and showing some growth in either weight or height with each checkup, then they are probably fine. He coined my daughter as "petite", and she was always down in the 5-9% percentile of the charts. She just turned 3 in Febuary and she is still only 26 pounds. But she is healthy and happy. My 10 month old, by comparison, is already 20 pounds. They were brought up with the same formula and foods. I wouldn't worry unless she falls significantly off the growth charts.

My 1 year old weighs 18 pounds and our doctor said he was in the 10th percentile which is still fine. We feed him a lot. But he doesnt gain weight. The doctor said he is just a very active little boy. He is always running around everywhere so I believe it burns a lot off of what he eats.So if ur little one is just pretty active that could be why your baby is on the thinner side like my son. I believe theyre perfectly healthy. As long as they get enough to eat and theyre not all skin and bones I think theres nothing wrong and some babies are just skinny. just like some adults are skinnier than others, everyones different, its the same concept.

Hi, I don't think you need to worry. My son weighed 15 kg (I know it's a lot more)
for about three years and only started gaining then. My sister's little girl also weighs so little, she's lighter than her brother who's two years younger (she's 5) and some baby clothes (12 to 18 months) still fit her!! She also went for tests and stuff, and they couldn't find anything wrong.