What types of inflammation can cause high fever?
Nov 25, 2025
Source: Cainiu Health
Dr. Ren Yi
Introduction
Inflammatory conditions that can cause high fever generally include pneumonia, suppurative tonsillitis, urinary tract infections, meningitis, appendicitis, etc. Lung tissue inflammation caused by bacterial, viral, or fungal infections commonly presents symptoms such as fever, cough, and chest pain. Bacterial pneumonia can be treated with amoxicillin-clavulanate potassium tablets, cefuroxime axetil tablets, or levofloxacin tablets as directed by a physician.
Inflammatory conditions that can cause high fever generally include pneumonia, suppurative tonsillitis, urinary tract infections, meningitis, appendicitis, and others. Detailed analysis is as follows:
1. Pneumonia: Inflammation of lung tissue caused by bacterial, viral, or fungal infection. Common symptoms include fever, cough, and chest pain. Bacterial pneumonia can be treated with amoxicillin-clavulanate potassium tablets, cefuroxime axetil tablets, or levofloxacin tablets as directed by a physician. Viral pneumonia requires antiviral medications such as oseltamivir capsules.
2. Suppurative tonsillitis: Caused by streptococcal infection, this condition leads to high fever and sore throat. Oral treatments include amoxicillin capsules and Pudilan anti-inflammatory oral liquid, along with ibuprofen suspension for fever reduction. Patients with recurrent episodes may need to consider tonsillectomy.
3. Urinary tract infection (UTI): Usually caused by bacteria such as Escherichia coli invading the urinary system, symptoms include fever, frequent urination, and painful urination. Treatment options include levofloxacin hydrochloride capsules, cefixime dispersible tablets, or fosfomycin trometamol powder, along with increased fluid intake.
4. Meningitis: Inflammation of the meninges due to bacterial or viral infection results in high fever, headache, and neck stiffness. Bacterial meningitis requires urgent treatment with ceftriaxone sodium for injection, while viral meningitis can be treated with acyclovir injection. Hospitalization is necessary in both cases.
5. Suppurative appendicitis: Often causes persistent fever accompanied by right lower abdominal pain, with blood tests showing elevated white blood cell count. Mild cases may be treated with metronidazole sodium chloride injection combined with cefoperazone sodium and sulbactam sodium, but most cases require surgical removal.
When experiencing unexplained fever, it is recommended to record the pattern of temperature changes and seek medical attention promptly. Once the site of inflammation is identified, targeted antibiotic or antiviral therapy should be initiated.
