You can find more signs of constipation in babies in this post. (easybabylife.com)
If your baby shows signs of constipation, but passes a soft stool after a couple of minutes, she might not have constipation. (newkidscenter.com)
Other signs of constipation include crying, a hard belly, loss of appetite, foul - smelling stools, and fewer than three bowel movements a week. (thetoddle.com)