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What can cause a fever?

Fever or elevated body temperature might be caused by:

  • A virus
  • A bacterial infection
  • Heat exhaustion
  • Certain inflammatory conditions such as rheumatoid arthritis – inflammation of the lining of your joints (synovium)
  • A malignant tumor
  • Some medications, such as antibiotics and drugs used to treat high blood pressure or seizures

What causes a person to develop a fever?

Fever or elevated body temperature might be caused by:

  • A virus
  • A bacterial infection
  • Heat exhaustion
  • Certain inflammatory conditions such as rheumatoid arthritis – inflammation of the lining of your joints (synovium)
  • A malignant tumor
  • Some medications, such as antibiotics and drugs used to treat high blood pressure or seizures

What is a normal body temperature for a fever? The normal body temperature is between about 36 and 37°C, but this can vary from person to person and from hour to hour. Most centres define fever as body temperature higher than 38°C. Temperatures between 37.5°C and 38.5°C may indicate a low-grade fever.

What would cause unexplainable fever? The main cause of an unexplained fever is some type of bacterial or viral infection. Other causes include prescription medicines and more serious underlying conditions, such as HIV or cancer. An unexplained fever may be accompanied by other symptoms that resemble a cold or allergic reaction.

Is 99.3 temp a fever? Diagnosis. Harrison’s Principles of Internal Medicine defines a fever as a morning oral temperature of >37.2 °C (>98.9 °F) or an afternoon oral temperature of >37.7 °C (>99.9 °F) while the normal daily temperature variation is typically 0.5 °C (0.9 °F).

What diseases cause high fever?

What diseases cause high fever? High Fever Causes. Common medical conditions resulting in high fever are measles, roseola, scarlet fever, glandular fever, sinusitis etc.

What are the reasons for fever? A fever could occur for various reasons, but the most common causes include infections, medications, vaccinations, and teething in small children. However, the actual reason as to why a fever occurs is because the raised body temperature can kill viruses and other germs that can cause severe harm.

Why do people get Fever? Fever is usually caused by an infection. Other causes of fever include inflammatory illness, drug reactions, or tumor growth. Sometimes, the cause may not be known. In an infection, the fever is a result of the body “heating up” to try to fight invading germs. Fever is an important natural defense against germs.

What are fevers caused by? Fever can be caused by a number of factors: an infection, such as strep throat, flu, chickenpox, or pneumonia. rheumatoid arthritis. some medications. overexposure of skin to sunlight, or sunburn. heat stroke, resulting either by exposure to high temperatures or prolonged strenuous exercise.