Is a 6-month-old baby's blue lips definitely a sign of a heart problem?

Patient's question:

No

Doctor's answer:

1. Exclude congenital heart disease. No problems with the lungs, indicating that the baby's condition is not serious.
2. Bronchitis may cause the baby's lips to turn slightly blue. Anemia generally only leads to pale lips in the baby, with severe cases causing very pale oral mucosa.