Which symptom may indicate that a child has an infection requiring treatment?

Fever is a well-known and significant indicator that a child may have an infection requiring treatment. It is the body's natural response to infection, serving as a mechanism to help fight off bacteria and viruses. When a child's body temperature rises above the normal range, it often suggests that an immune response is occurring, which can be linked to an active infection.

In many cases, a fever may accompany other symptoms, but its presence is a clear signal for parents and caregivers to monitor the child's condition closely and potentially seek medical attention. While loss of appetite, fatigue, and rash can also be concerning and may suggest various health issues, they are not as definitive an indicator of infection as a fever. A fever usually warrants further investigation to determine the exact cause and whether treatment is necessary.