Most children learn to use the toilet between 2 and 4 years of age. Even after children are toilet-trained, they may wet the bed until they are older. It's even common for 6-year-olds to wet the bed once in a while. Some children still wet the bed at age 12.

Did you know that hundreds of children younger than 1 year die every year in the United States because of injuries — most of which could be prevented?

Preterm (premature) birth occurs in about 10% of pregnancies in the United States. For twins, triplets, and other multiple deliveries, that number jumps to almost 60%. Here is information from the American Academy of Pediatrics for parents of preterm babies—what to expect after birth at the hospital.

Here is information from the American Academy of Pediatrics about some of the most common conditions that occur in preterm infants.