Marijuana and pregnancy Using marijuana during pregnancy may cause harm to your baby. Learn about the effects of marijuana and how to seek help to quit.
Low birthweight Low birthweight is when a baby is born weighing less than 5 pounds, 8 ounces. Learn about the causes, risks and health-related effects of low birthweight.
Spina bifida Spina bifida is when a baby's spine doesn't form correctly. It may cause a number of health problems and requires treatment.