Our Mommy MD Guide’s reply: My son usually poops four times a day, but when he was around a year old, he got terribly constipated. He was screaming and crying. I bought some baby glycerin suppositories. (Don’t give your baby this or any medication before talking your doctor.) My mom was visiting, and she helped me administer them. They gave us the results we were looking for. After that, I was careful to give my son more to drink. He didn’t have a problem again after that.