Neonatal jaundice is called "fetal jaundice" in Traditional Chinese Medicine (TCM). It primarily refers to infants born with jaundice as the main symptom, characterized by yellowing of the skin and facial area. This condition is related to prenatal constitution, hence it is also known as fetal jaundice or fetal dyspepsia. The causes of fetal jaundice are divided into internal and external factors. Internal factors involve the fetus being affected by the toxins of damp-heat or the evil of deficient-cold and damp-cold from the mother. External factors mainly include the baby being affected by damp-heat or cold-damp evils during or after birth, with damp-heat evils being more common. The main affected organs are the liver, gallbladder, spleen, and stomach, with the key pathogenic mechanism being prenatal damp retention. Commonly used Chinese herbal baths for neonatal jaundice, particularly suitable for damp-heat type jaundice, are generally selected based on the specific conditions of the child, adjusting formulas like Yinchenhao Tang to tailor to the exact pattern of the baby.