What to do when my 11mos. Old babies turns blue when crying?

See your doctor. Many infants between 9 months and 3 years old will have breath holding spells where they turn "blue" and can faint from holding their breath. These spells occur in response to pain or anger - always. Some kids will have some blueness around the lips (not the lips themselves) when crying and this can be normal. I would have my child seen to be sure it is a breath holding spell & nothing concerning.