Q: What is the most common question parents have for you?

Feeding and sleeping questions: 48%
Safety of immunizations: 17%
"Is he growing okay?": 17%
Pooping: 12%
Can't answer, it varies too much: 6%

"Two major topics are sleep and nutrition. Sleep is a big issue, especially these days in my practice in Manhattan, also discipline issues and how to deal with children at different ages." — Lisa A. Kaufman. MD. NY, NY.

"Questions parents have vary with the age of their child. Feeding questions are most common, followed closely by stooling. People are worried sick about their children's poop, we are anally hung up." — Charles I. Shubin, MD, FAAP. Baltimore, MD.

"Feeding concerns are common, when to start solids. When kids get to 18 months they stop eating. Questions about development and questions about potty-training and constipation are also big." — Erik Cohen, MD, FAAP. Greenwich, CT.

To obtain these results, Babble randomly called 300 AAP-approved pediatricians in 50 states, then tallied the answers of the 20 who called back. Pediatrician Poll appears in Strollerderby every Friday.