Also called: Pyrexia
अनुवाद: हिन्दी
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A fever is a body temperature that is higher than normal. It is not an illness. It is part of your body's defense against infection. Most bacteria and viruses that cause infections do well at the body's normal temperature (98.6 F). A slight fever can make it harder for them to survive. Fever also activates your body's immune system.

Infections cause most fevers. There can be many other causes, including

Treatment depends on the cause of your fever. Your health care provider may recommend using over-the-counter medicines such as acetaminophen or ibuprofen to lower a very high fever. Adults can also take aspirin, but children with fevers should not take aspirin. It is also important to drink enough liquids to prevent dehydration.

Symptoms of Fever

The following features are indicative of Fever:
  • sweating
  • shivering
  • headache
  • muscle aches
  • loss of appetite
  • dehydration
  • general weakness
  • hallucinations
  • confusion
  • irritability
  • convulsions
It is possible that Fever shows no physical symptoms and still be present in a patient.
References: 1, 2, 3

Common Causes of Fever

The following are the most common causes of Fever:
  • infection
  • inflammatory disorders
  • extreme sunburn
  • heat exhaustion
  • malignant tumor
  • immunizations
References: 1, 2, 4

Other Causes of Fever

The following are the less common causes of Fever:
  • medications
  • teething
  • thrombophlebitis
References: 1, 2, 4

Risk Factors of Fever

The following factors may increase the likelihood of Fever:
  • weakened immune system

Prevention of Fever

Yes, it may be possible to prevent Fever. Prevention may be possible by doing the following:
  • reducing exposure to infectious diseases
  • wash hands thoroughly
  • using hand sanitizer
  • try to cover mouth and nose while coughing or sneezing
References: 5

Occurrence of Fever

Degree of Occurrence

The following are number of Fever cases seen each year worldwide:
  • Very common > 10 Million cases

Common Age Group

Fever most commonly occurs in the following age group:
  • Can happen at any age

Common Gender

Fever most commonly occurs in the following gender:
  • Not gender specific
References: 4

Lab Tests and Procedures for Diagnosis of Fever

The following lab tests and procedures are used to detect Fever:
  • Blood tests: To determine the cause of fever
  • Chest x-ray: To diagnose the cause of fever
  • Urinalysis: To know the cause of the fever
References: 1, 5

Doctor for Diagnosis of Fever

Patients should visit the following specialists if they have symptoms of Fever:
  • General practitioner
  • Family doctor
  • Pediatrician

Complications of Fever if Untreated

Yes, Fever causes complications if it is not treated. Below is the list of complications and problems that may arise if Fever is left untreated:
  • severe dehydration
  • hallucinations
  • febrile seizure
References: 6

Self-care for Fever

The following self-care actions or lifestyle changes may help in the treatment or management of Fever:
  • Drink plenty of fluids: Prevents fluid loss and dehydration
  • Take rest: Helps in recovering you from fever
References: 7

Alternative Medicine for Treatment of Fever

The following alternate medicine and therapies are known to help in the treatment or management of Fever:
  • Lukewarm bath or sponge bath: Helps in lowering the fever
References: 1

Time for Treatment of Fever

While time-period of treatment for each patient may vary, below is the typical time-period for Fever to resolve if treated properly under an expert supervision:
  • Within 1 week
References: 4, 7

Is Fever Infectious?

Yes, Fever is known to be infectious. It can spread across people via the following means:
  • direct contact
References: 8

Questions - Fever

Demographic Information - Fever

Following is the demographic information reported by website visitors for Fever. Information below may include patient demographics as well as data for website visitors who might be researching on behalf of patients e.g. parents for small children. The data below may or may not be reflective of the complete patient population demographics for this medicine/health topic.
User gender
77 out of 96 users are male.
Survey Participants: 96
User age
The most common user is < 21 years old.
< 2141
Survey Participants: 99
User reported disease
Users most commonly suffer from Back pain.
Back pain14
Sexually transmitted disease (STD)4
Chronic pain (e.g., arthritis, migraine, fibromyalgia, neuropathy)2
High blood pressure2
Heart attack2
Survey Participants: 39
User exercise frequency
Users most commonly exercise once a week.
Once a week29
Twice a week5
Five times a week7
Survey Participants: 68
User smoking habit
77 out of 100 users do not smoke.
Do not smoke77
Survey Participants: 100
User alcohol consumption frequency
Users most commonly reported never consuming alcohol
One drink a day6
Two drinks a day5
More than two drinks a day0
Once a week4
Twice a week4
Once a month6
Survey Participants: 74
User body weight
25 out of 82 users report being overweight.
Not overweight57
Survey Participants: 82
User well-being
31 out of 74 users report having significant pain in the last 3 months.
Significant pain in the last 3 months31
No significant pain in the last 3 months43
Survey Participants: 74
User profession
The most common user profession is Student.
House Maker7
Engineer, IT or Software5
Family business3
Government service3
Survey Participants: 56


  1. MedlinePlus Fever - Accessed: February 20, 2017.
  2. MAYO CLINIC Fever - Accessed: February 20, 2017.
  3. Maayan-metzger A, Mazkereth R, Kuint J. Fever in healthy asymptomatic newborns during the first days of life. Arch Dis Child Fetal Neonatal Ed. 2003;88(4):F312-4 - Accessed: February 20, 2017.
  4. Wikipedia Fever - Accessed: February 20, 2017.
  5. MAYO CLINIC Fever - Accessed: February 20, 2017.
  6. MAYO CLINIC Fever - Accessed: February 20, 2017.
  7. MAYO CLINIC Fever - Accessed: February 20, 2017.
  9. Source:

Last updated date

This page was last updated on 12/10/2017.
This page provides information for Fever in English.

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