Why does a Babys Low-Grade Fever Persist?

Persistent low fever in infants may be caused by non-infectious low fever, chronic infectious low fever, infectious low fever, weather conditions, dietary reasons, and other factors. It is necessary to address the specific cause and avoid blind medication. Here are some possible reasons:

1. Non-infectious Low Fever

There are many reasons for low fever in children, and non-infectious diseases are one of them. These include blood diseases, immune system diseases, endocrine disorders, etc. Since infants have relatively weak temperature regulation abilities, administering fever-reducing medication to infants with a temperature below 38℃ can easily cause their body temperature to drop below the normal level of 36℃. Therefore, it is not recommended for parents to give fever-reducing medication to infants with a temperature below 38℃.

2. Chronic Infectious Low Fever

If the baby has diseases such as tuberculosis, otitis media, sinusitis, etc., it may lead to persistent low fever. Parents should closely monitor the baby's condition and seek timely treatment.

3. Infectious Low Fever

If the baby is sick but does not receive timely treatment, it may lead to recurrent illness and repeated low fever.

4. Low Fever After Infection

This refers to cases where the baby has recovered from diseases such as pertussis, measles, diphtheria, but the body's temperature regulation system may not have fully recovered yet, resulting in persistent low fever.

5. Weather Conditions

During the summer, some babies may have reduced water intake, leading to less sweating and insufficient heat dissipation from the body, which can cause an increase in body temperature and low fever. In this case, parents do not need to worry too much. As long as the child does not have any other abnormalities, their body temperature will naturally return to normal when the weather cools down in autumn.

6. Dietary Reasons

If a child has persistent low fever accompanied by vomiting, decreased appetite, etc., it may be caused by indigestion or poor digestion. Parents can give their child medication to promote digestion under the guidance of a doctor and maintain a bland diet.