What is the cause of a sudden fever in a child?

It is a common situation for parents that their children suddenly have a fever. At this time, parents must be very worried about their children's condition and want to know what disease the child has suddenly had a fever so that they can take corresponding treatment measures. So what disease causes a child’s sudden fever? Next, this article will introduce relevant content in this regard for your reference only.

What disease causes a child to suddenly have a fever? Fever is a defensive manifestation of the body against bacteria and viruses. If your baby has other symptoms when he has a fever, you should pay attention to check whether it is caused by influenza, cold, gastroenteritis, ear infection, roseola infantum, pneumonia, urinary tract infection, hand, foot and mouth disease and other diseases.

1. Influenza

Cold symptoms are severe, runny nose, cough, diarrhea, vomiting, poor appetite, irritability, and sudden fever, usually above 38.3℃. Common in winter and spring.

2. Cold

If you have a runny nose, it will probably turn into thick gray, yellow or green mucus after about a week, and you may have a cough or a low-grade fever. After the fever subsides, your baby may play and eat normally. If this is not the case, there may be a problem more serious than a cold.

3. Gastroenteritis

Fever may be the first symptom, followed by nausea, cramps, chills, vomiting, or diarrhea.

4. Ear infection

Irritability, crying, pulling ears, fever, body temperature over 37.8℃, vomiting, diarrhea, and loss of appetite may occur. In extremely rare cases, yellow or white fluid may come out of the ear. Most common after a cold.

5. Roseola infantum

The fever usually exceeds 39°C and lasts for 3 to 5 days. It may be preceded or accompanied by a runny nose. Then a red rash breaks out, spreading to the neck, face, and arms. Children aged 6 months to 3 years are most likely to develop the disease.

6. Pneumonia

The cold seems to be getting worse, with a persistent cough, rapid and labored breathing, fever, and chills.

7. Urinary tract infection

Temperamental irritability may show some signs of painful urination, cloudy, bloody or foul-smelling urine. Sometimes vomiting or diarrhea may occur. There is usually a fever, and sometimes no other symptoms.

8. Hand, foot and mouth disease

Small blisters, such as in the mouth, on the palms of the hands, and/or the soles of the feet (and possibly on the buttocks). Low-grade fever, sore throat, and loss of appetite. It is most common in children aged four or five, but it can occur in babies of any age.

In short, there are many diseases that can cause children to suddenly have a fever, and the most common ones are the ones introduced above. Therefore, parents must pay attention to some symptoms that appear when their children suddenly have a fever, and be careful to distinguish them. These symptoms can help us determine what disease causes the child's sudden fever, so that we can identify the condition in time and provide symptomatic treatment.