Why does my child continue to have a fever?

Children often have various problems when they are young, especially when the seasons change. If you don’t pay attention, the child may have a fever. Whenever a child has a fever, mothers feel more uncomfortable than the child and wish they could get sick for the child, especially when the fever persists. What is going on with the child’s persistent fever?

Pediatric fever refers to when a child has a fever with a temperature of around 39.1 to 41 degrees Celsius. A fever lasting more than two weeks is considered long-term fever. The normal body temperature of children is usually measured by a rectal temperature of 36.5-37.5℃ and an axillary temperature of 36-37℃. Under normal circumstances, axillary temperature is 0.2 to 0.5°C lower than oral temperature (sublingual temperature), and rectal temperature is about 0.5°C higher than axillary temperature. If the axillary temperature exceeds 37.4°C and the body temperature fluctuates by more than 1°C during the day, it can be considered as a fever. The so-called low fever refers to an axillary temperature of 37.5℃~38℃, moderate fever 38.1℃~39℃, high fever 39.1℃~40℃, and hyperpyrexia above 41℃.

Allergic reaction (20%):

For example, allergic reactions to vaccination, infusion and blood transfusion, foreign serum and allergic reactions can all cause acute high fever.

General disease factors (30%):

Heatstroke, certain intracranial injuries, epilepsy and convulsions, neonatal dehydration, etc. can also cause acute high fever.

Infectious disease factors (25%):

The early stages of acute infectious diseases or acute infectious diseases of various systems can also cause acute high fever.

Malignant tumors (15%):

For example, leukemia, malignant lymphoma, malignant histiocytosis, connective tissue disease, etc. may cause long-term high fever in children.

Other diseases (5%):

Sepsis, Salmonella infection, tuberculosis, rheumatic fever, juvenile rheumatoid arthritis, etc. can also cause long-term high fever in children.

If the child continues to have a fever, it is best to take the child to the hospital for examination. Generally speaking, a child's persistent fever is closely related to some diseases, so it is very necessary to go to the hospital for a thorough examination, find out the cause, and take reasonable measures. In addition, during the child's illness, make sure the child eats more light food and do not force the child.