How long is the incubation period for neonatal jaundice?

Written by Li Jiao Yan

Neonatology

Updated on September 05, 2024

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Neonatal jaundice is the most common phenomenon in the neonatal period, especially in early neonates, which refers to newborns within the first week of life. About 80% of full-term infants can visually exhibit signs of jaundice. Jaundice can be categorized into physiological jaundice and pathological jaundice. Typically, physiological jaundice appears about two to three days after birth. If it is pathological jaundice, it may appear earlier, possibly within the first twenty-four hours after birth. Generally, if the jaundice appears early, progresses quickly, and is severe, it is necessary to intervene and treat promptly.

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Written by Li Jiao Yan

Neonatology

1min 37sec

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normal values of neonatal jaundice

Neonatal jaundice is the most common phenomenon in the neonatal period, generally divided into physiological jaundice and pathological jaundice. If the baby's values are within the normal range, it may be physiological jaundice, which does not require special intervention and will resolve on its own. Typically, normal physiological jaundice appears 2-3 days after birth, peaks around 4-5 days, begins to lessen about a week later, and resolves within two weeks, generally occurring in full-term infants born after 37 weeks. It's advisable for babies to have their jaundice monitored daily within the first two weeks, especially during the peak period, from 2-3 days to about a week or around ten days, when jaundice monitoring should be more frequent. Normally, it's best if the bilirubin levels in newborns do not exceed 6 mg/dL in the first 24 hours, 9 mg/dL within 24-48 hours, 12 mg/dL within 48-72 hours, and 15 mg/dL after 72 hours. These values are generally considered acceptable. Additionally, jaundice progression should not be too rapid; if bilirubin levels rise more than 5 mg/dL within 24 hours, it indicates too rapid an increase in jaundice. In such cases, it is also necessary to go to the hospital, where a neonatal doctor should assess the baby and decide if special treatment intervention is needed.

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Written by Li Jiao Yan

Neonatology

1min 16sec

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Do newborns with jaundice feel uncomfortable?

Neonatal jaundice is one of the most common symptoms during the newborn period. It can be a normal physiological phenomenon occurring in the baby's development process, or it may indicate some diseases. Neonatal jaundice is divided into physiological jaundice and pathological jaundice. Generally, the degree of jaundice in physiological jaundice is not very high, and the general condition is still okay. The baby does not show any special discomfort. However, if it is pathological jaundice, the jaundice usually lasts longer and progresses faster with a more severe degree. There might be other discomforts, such as obvious crying and restlessness, possibly even fever, and other symptoms like sleepiness or refusal to feed. Therefore, if the jaundice is slightly high, the general condition is still manageable, and parents should not worry too much. However, if there are obvious discomforts, it is recommended to visit the hospital promptly because if a newborn baby gets sick and is not treated in time, the condition can progress quickly.

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Written by Li Jiao Yan

Neonatology

1min 2sec

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Will neonatal jaundice recur?

Neonatal jaundice is a common symptom during the newborn period. It can be a symptom of normal growth and development or an indication of certain diseases. Jaundice is divided into physiological and pathological jaundice. Physiological jaundice generally appears two to three days after birth, reaches its peak around four to five days, and subsides around ten days. Generally, the duration of jaundice in babies does not exceed two weeks, and the situation is usually manageable. Once physiological jaundice has subsided, it does not recur. If jaundice reappears after it has completely resolved, it is necessary to be cautious as it may indicate pathological jaundice. In such cases, it is advisable to visit the hospital where doctors can conduct relevant tests based on the baby's condition. If it is confirmed that the pathological jaundice needs treatment, it is recommended to intervene and treat it early.

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Written by Li Jiao Yan

Neonatology

1min 3sec

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Is a bilirubin level of 20 high for a newborn?

If a newborn's skin jaundice reaches a level of twenty, it is a warning sign that the jaundice is significantly elevated. It is advised to promptly go to the hospital for an examination. If the bilirubin levels in the blood are indeed that high, timely intervention and treatment are necessary. Normally, for physiological jaundice, the levels should not exceed fifteen after seventy-two hours in infants. Even during the peak period of four to five days, it should not surpass fifteen. If the jaundice noticeably increases within the first three days and exceeds twenty, the severity of the jaundice might be worse. The younger the newborn, especially with levels above twenty, the higher the risk of bilirubin entering the brain, potentially leading to bilirubin encephalopathy. Therefore, with jaundice reaching twenty, it is still recommended to promptly go to the hospital for intervention and treatment.

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Written by Li Jiao Yan

Neonatology

1min 21sec

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Causes of recurrent neonatal jaundice

Neonatal jaundice is one of the common symptoms during the newborn period, especially in early newborns. It can be a symptom that appears in the normal development process, or it may be a manifestation of certain diseases. Generally, neonatal jaundice is divided into physiological jaundice and pathological jaundice. Typically, physiological jaundice gradually increases to a certain level and then subsides, and does not recur. If the jaundice recurs, or if it significantly increases after decreasing, or reappears after subsiding, it is definitely pathological jaundice. Pathological jaundice has many possible causes, commonly including infections, hemolysis, or other genetic metabolic diseases, or some red blood cell disorders, all of which can affect the recurrence of jaundice. Therefore, if the jaundice recurs, it is advisable to visit a hospital. A neonatologist will conduct relevant examinations based on the baby's condition to confirm if it is pathological jaundice. The cause should be clearly identified for targeted treatment, followed by symptomatic treatment, and timely intervention is necessary.