When does neonatal jaundice begin?

When does neonatal jaundice begin?

When neonatal jaundice appears depends on individual circumstances. If the baby is born at full term, it will appear about 2 to 3 days after birth. Generally, it appears earlier in premature babies, and the time of pathological jaundice is not fixed. There are many reasons for childhood jaundice, such as viral infection and hypoxia.

1. When does neonatal jaundice begin?

1. Full-term start time

When the jaundice in a newborn baby begins depends on the individual situation. If the baby is born at full term, jaundice will appear about 2-3 days after birth. Jaundice usually reaches its peak within 5-7 days after birth, but it will not disappear automatically for more than two weeks at most. At the same time, it will not cause any harm to the baby's body.

2. Starting time for premature babies

If it is a premature baby, jaundice will appear earlier, and it will be very serious about two days after birth. Moreover, compared with children born at full term, the jaundice of premature babies will be more severe. At the same time, it will last longer and take about a month to subside.

3. Time of onset of pathological jaundice

Generally speaking, the onset time of pathological jaundice is not fixed, mainly because there are many reasons for pathological jaundice in children, and the onset time of different reasons is also different. Generally speaking, it occurs around 3 to 7 days after birth, and the specific disappearance time varies from person to person.

2. Causes of neonatal jaundice:

1. Hypoxia

Generally speaking, the main reason for physiological jaundice in children is due to lack of oxygen in the mother's uterus, which will lead to an increase in the number of red blood cells in the human blood, and because they are not yet mature, the bilirubin in the child's body will also increase.

2. Infectious factors

Infectious factors are one of the common causes of pathological jaundice in children, and the more common infection is hepatitis B virus infection.