Is it normal for a child to have a low-grade fever after adenoid surgery?

A low fever generally refers to a mild elevation in body temperature, and adenoid surgery usually means adenoidectomy. It is normal for children to develop a low-grade fever after adenoidectomy. The detailed explanation is as follows:

Children commonly experience fever following adenoidectomy, which results from absorption of surgical byproducts (absorption fever), and there is generally no need for excessive concern. This mild fever typically lasts 3–4 days and the body temperature does not exceed 38.5°C. Physical cooling methods can be used to relieve discomfort, such as tepid sponge baths or applying fever-reducing patches. If low-grade fever persists beyond 3–4 days post-surgery, it is recommended to visit a hospital promptly for temperature monitoring and blood tests to check for possible wound infection. In cases of wound infection, anti-infective treatment may be prescribed under medical supervision, including medications such as cefaclor granules or amoxicillin granules.

The adenoids, also known as pharyngeal tonsils or nasopharyngeal tonsils, grow actively between the ages of 2 and 6 and gradually regress after age 10. Enlarged adenoids can cause nasal obstruction, mouth breathing, snoring, and restless sleep in children. For these reasons, some parents opt for adenoidectomy at a hospital. Postoperative fever in children might also result from catching a chill. In such cases, a complete blood count (CBC) test at the hospital is recommended for proper diagnosis and treatment. Additionally, attention should be paid to postoperative diet adjustments—favoring light, easily digestible foods—and ensuring adequate warmth to prevent colds.