Fever (Pyrexia)

Overview

Fever is a temporary rise in the body's temperature. It's also known as pyrexia. It is usually caused by an underlying infection or inflammation. It is a common symptom that indicates that the body is fighting an infection. 

Fever may be an uncomfortable condition for children and adults. It is the reaction of the body to the underlying condition. It may be a cause of concern in infants, even in low-grade fever, which may mean a serious infection. 

Signs and Symptoms

Depending on what condition is causing the fever, symptoms may vary, and include: 

• Sweating
• Chills and shivers
• Headache
• Muscle aches
• Loss of appetite
• Irritable mood
• Dehydration
• General weakness

Causes of Fever (Pyrexia)

Fever arises from the body's immune response to foreign invaders such as viruses, bacteria, fungi, drugs, or other toxins.

Infections:

Fever is a common symptom of most infections.

Children:

Immunizations or teething may cause a low-grade fever.

Other Causes:

Autoimmune disorders, reactions to medications, seizures, or cancer can also cause rise in body temperature. 

Diagnosis

To evaluate fever, the physician may advise the following:

• Perform a Physical Examination
• Blood Tests: To detect infections, inflammation, and other issues.
• Urine Tests: To detect urinary tract infections.
• Imaging Studies: X-rays, sound waves (ultrasounds), or CT scans are used to see internal structures and identify any abnormalities.
• Cultures: Blood, urine, or sputum cultures to identify bacterial or viral infections.
• Other Specific Tests: These may be required for specific conditions for further evaluation. 

Treatment

Medication:

For a low-grade fever, your physician may not advise any medications to lower your body temperature. Fevers above 102degree Celsius usually require medication. Your physician may prescribe Antipyretics, Antibiotics, Antivirals, or Anti-inflammatory medicine as per your condition. 

Lifestyle and Home Remedies:

• Hydration: Drink plenty of fluids to prevent dehydration.
• Rest: Take adequate rest to help your body recover.
• Stay cool: Use a cool, damp cloth on the forehead, take lukewarm baths, and keep the environment cool.
• Light Clothing: Wear lightweight clothing to avoid overheating.

Surgery:

Surgery is rarely required for treating fever itself, but it may be necessary to address underlying conditions causing the fever, such as an abscess or appendicitis.

FAQs

What causes fever?

Fever can be caused by infections (bacterial, viral, fungal), inflammation in the body, heat exhaustion, certain medications, cancers and other medical conditions.

When should I seek medical help for a fever?

Seek medical attention if the fever is very high (above 40°C or 104°F), lasts more than three days, or is accompanied by severe symptoms such as difficulty breathing, chest pain, persistent vomiting, confusion, or a rash.

Can fever indicate a serious condition?

Fever can be a sign of serious meningitis or sepsis and some inflammatory diseases. These conditions, alongside fever, need evaluation. Fever may be a sign of more serious conditions. 

What methods can I use to reduce fever symptoms at home? 

To reduce fever, using antipyretic medications, rest, and hydration. Moreover, lukewarm baths and light clothing can reduce body temperature. 

Is fever contagious?

Fever itself is not contagious. Underlying conditions, viral or bacterial infections that cause fever, are contagious. 

For expert diagnosis and treatment of fever, visit Yatharth Hospital. Our experienced physicians at Yatharth Hospitals, Delhi NCR, are dedicated to providing comprehensive and compassionate care for your specific needs.