When is a dog fully grown?

I bet you were told that a dog is considered to be fully grown at the age of 2 years old. That is like saying that every person has stopped growing at the age of 17. Like the human growth hormone, the dog's growth hormone is based on their individual genetic makeup. It is also a fact that different dog breeds develop at different rates. So next time someone tells you that dogs take 2 years to become fully grown just smile inside and know that it is not always true.