A fever, whether high or low, is an early sign of many diseases. However, when many people have a fever, especially if the fever is not high, they may overlook treatment because they think it is a minor problem and that they should rest for a while and it will go away on its own.
But Dr. Kittiwat Puangmali, a general practitioner from the ยูฟ่าเบท http://ufabet999.app, warns that if you have a fever and have any of the symptoms in this article, it would be best to see a doctor immediately.
First, let’s learn a little bit about the definition of fever.
Normally, the human body temperature is around 35-37.4 degrees Celsius. If the temperature is higher than this, it is called a fever. The levels of fever can be divided as follows:
- Body temperature 37.5 – 38 degrees Celsius = low fever
- Body temperature 38 – 39 degrees Celsius = high fever
- Body temperature of 40 degrees Celsius or more = very high fever
What are the possible causes of a fever?
- Viral infections such as influenza, RSV, COVID-19, dengue fever
- Bacterial infections such as pneumonia, food poisoning, cystitis, or leptospirosis
- The body experiences inflammation that is not infectious, such as inflammation caused by a tumor or cancer.
- Immune problems
- Drug or serum allergy, post-transfusion reaction
- Other causes include dehydration, exercising in the sun, and thyroid dysfunction.
Having a fever like this is dangerous. You should see a doctor immediately.
- Have a high fever of 39 degrees Celsius or higher.
- I had a high fever and a severe headache.
- Have a fever and a rash, hives
- I have a fever and a stiff neck, severe stomach and back pain.
- Fever and abnormal urinary system, blood in urine
- Getting a fever after eating food or taking certain medicines indicates an allergic reaction.