Neonatal jaundice does not usually cause purple lips, which is mainly caused by lack of oxygen, such as congenital heart disease and respiratory disease.
Neonatal jaundice includes physiologic jaundice and pathologic jaundice, which is mainly caused by the concentration of bilirubin in the blood exceeding the normal level, resulting in yellow staining of the skin, sclera, etc., but usually does not cause purple lips.
If a newborn baby has purple lips, it is likely to be caused by lack of oxygen, for example, congenital heart disease will affect the blood supply, which will lead to lack of oxygen and cause purple lips; it may also be caused by respiratory diseases, for example, pneumonia will also affect the respiratory exchange, which will lead to lack of oxygen and cause purple lips.
Newborns with purple lips, must be timely consultation, identify the causes and then targeted treatment, to avoid delay in treatment.