Is jaundice more than 300 serious?

Neonatal jaundice 300μmol/L is usually more serious, belonging to pathological jaundice, generally related to bilirubin abnormalities, children will appear yellow skin, edema, lack of spirit, loss of appetite and other symptoms. You should take your baby to the hospital pediatrics in time, follow the doctor's advice to give the child blue light irradiation treatment.