The most common external cause of fever, especially in young children - are cold infections and their complications.
In case of cold disease
the fever is accompanied by a cough and a runny nose
In the case of influenza:
cough, runny nose, headache and muscle also appear
In inflammation of the middle ear
ear pain also appears
Fever is the harbinger of many other diseases, or accompanies their specific symptoms.
The diseases that are usually accompanied by a fever include: gastrointestinal infections (diarrhea and vomiting); cystitis (urge to the bladder, burning during urination), some rheumatoid diseases.
Fever should never be downplayed!
Because in some cases it may be a symptom of a serious systemic disease that other symptoms have failed to observe.
Clinical medicine experiences the following typology of causes of high fever:
- viral, bacterial, pathogenic fungi or parasites,
- collagenosis (lupus erythematodes),
- neoplastic diseases (clear cell renal cell carcinoma),
- diseases of the nervous system (brain tumor),
- cardiovascular disease (myocardial infarction),
- diseases of the gastrointestinal tract (inflammatory bowel disease),
- hematological diseases (leukemia),
- endocrine diseases (hyperthyroidism),
- diseases caused by physical factors (heat stroke),
- diseases caused by the action of chemical agents (drug-induced reaction),
- disturbances of the internal environment (dehydration, acidosis),
- for unknown reasons.
(Clinical classification of febrile states with representative examples (according to Chatton):
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