Sudden high fever and continuous fever for 2-7 days; then appear bleeding spots or plaques under the skin, if more severe, accompanied by nosebleeds, bleeding gums, sometimes with internal bleeding.

Young children often have high fevers because their immune systems are weak. High fevers are a symptom that indicates a health problem, so if your child has a prolonged fever of unknown cause, parents need to understand and determine how to handle this situation.

Prolonged fever of unknown origin is a warning sign of many serious health problems. Therefore, patients should see a doctor early for an accurate diagnosis and the most active and effective treatment.