Newborn jaundice on the fourth day 16?

Generally speaking, most babies will have physiological jaundice after birth, and the jaundice will reach its peak at 4 to 6 days, and will slowly subside at 7 to 9 days. If it has not completely subsided within 2 or 3 weeks, it is likely to be pathological jaundice. Newborn jaundice is 16 on the fourth day, and this period is the peak period of jaundice. Parents can observe first and test their baby for jaundice regularly.

Neonatal jaundice refers to a disease characterized by yellowing of the skin, mucous membranes and sclera due to the accumulation of bilirubin in the body during the neonatal period (from the time the umbilical cord is tied after delivery of the fetus to 28 days after birth). 60%-80% of newborns will have yellow skin within 2 to 5 days after birth, which is a normal phenomenon. This disease is divided into physiological jaundice and pathological jaundice.

Normal value of neonatal jaundice

In medicine, the value of physiological jaundice is taken as the normal value of neonatal jaundice. The normal value of jaundice in full-term newborns is 12.9 mg/dl (mg/100 ml), which means that the bilirubin level in 100 ml of blood is normal if it is lower than 12 mg. The normal value of jaundice in premature infants is a bilirubin level below 15 mg/dl (mg/100 ml).

Symptoms of neonatal jaundice

1. Physiological jaundice

It appears 2 to 3 days after birth, is most obvious on the 4th to 5th day, and disappears naturally on the 7th to 10th day. The general condition is good. Jaundice in immature infants may be severe and may last for 2 to 3 weeks. The serum bilirubin in mature children is usually <12mg%, while that in immature children may be <15mg%. If the daily increase is >5mg%, or if jaundice occurs shortly after birth or the jaundice is severe, it should be considered abnormal and the cause should be further identified.

2. Hemolysis

It is caused by ABO or RH blood type incompatibility between mother and child. Jaundice appears early and is severe, often accompanied by anemia, edema, and hepatosplenomegaly. The diagnosis can be confirmed by checking the blood types of the parents and the child, the specific antibodies in the mother's blood, and the bilirubin content in the child.

3. Infection or sepsis: Most of them have infected lesions, accompanied by fever and other symptoms of poisoning.

4. Viral hepatitis

The disease usually develops slowly 1 to 3 weeks after birth, accompanied by gastrointestinal symptoms such as loss of appetite and liver damage.

5. Congenital biliary atresia

Jaundice appears 1-2 weeks after birth and progressively worsens. The liver is enlarged and hard, the urine is dark, the stool is gray and clay-like, and the blood bilirubin (direct bilirubin) is elevated.

6. Other hemolytic anemias

Vitamin K2 and sulfonamide drug poisoning, metabolic and endocrine abnormalities, such as galactosemia, cretinism and congenital hereditary hyperbilirubinemia, etc.

If neonatal jaundice is physiological, there is no big problem. However, if it is a pathological condition, it must be checked and treated in time, otherwise it will affect the baby's life.