What causes fever and headache? 78 possible conditions

Viewing 1 - 20 of 78 results

See a list of possible causes in order from the most common to the least.

1

Common Cold Overview

The common cold is a virus that involves symptoms like sneezing, a runny nose and a headache. Learn the causes, symptoms and treatments for the common cold now!

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2

Cold and Flu Overview

Overview Colds (common colds) and the flu (influenza) are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Colds typically are confined to th...

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3

Sinus Infections (Sinusitis)

A sinus infection, or sinusitis, is a common condition that affects 31 million people in the United States each year. The infection occurs when your sinuses and nasal passages become inflamed. The sinuses are small ai...

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4

Strep Throat

Strep throat is a bacterial infection that causes inflammation and pain in the throat. It's especially common in children. Look out for sudden fever, a red throat with white patches, headache, and chills.

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5

Acute HIV Infection

Acute HIV infection is the primary stage of infection by the human immunodeficiency virus. There are several telltale symptoms, one of which is a rash.

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6

Swine Flu

Swine flu, also known as H1N1, is a highly contagious virus with symptoms similar to common influenza types. It spreads quickly from person to person, and can linger on tables and surface areas.

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7

Dengue Fever

Dengue fever is a disease that affects much of the tropical region and is caused by one of four dengue viruses. A skin rash between two and five days after the initial fever is a common symptom.

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8

Food Poisoning

This condition is considered a medical emergency. Urgent care may be required.

Food poisoning occurs when you consume foods contaminated with bacteria, viruses, or parasites. Symptoms are usually uncomfortable but not severe. Serious reactions can be life threatening and require medical treatment.

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9

Pneumonia

Pneumonia is an infection of the lungs. General symptoms include chest pain, fever, cough, nausea, and difficulty breathing. Blue skin, high fever, and bloody mucus are serious signs.

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10

Malaria

Malaria is a life-threatening disease. It is typically transmitted through the bite of a mosquito infected with Anopheles. Nausea, chills, fever, and diarrhea are common symptoms.

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11

Meningitis

This condition is considered a medical emergency. Urgent care may be required.

Meningitis is an inflammation of the meninges. This is the membrane that covers the brain and spinal cord. Meningitis may occur when fluid surrounding the meninges becomes infected. The most common causes of meningiti...

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12

Caffeine Overdose

Caffeine overdose may occur when you ingest more than the recommended amount of caffeine, which is usually 200 to 300 mg per day. However, a safe amount of caffeine is different for everyone, as it depends on weight...

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13

Heat Emergencies

This condition is considered a medical emergency. Urgent care may be required.

Heat emergencies are health crises caused by exposure to hot weather and sun. Heat emergencies have three stages: heat cramps, heat exhaustion, and heatstroke. All three stages are serious. If left untreated, the firs...

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14

Tonsillitis

Tonsils are the two lymph nodes located on each side of the back of your throat. They function as a defense mechanism, helping to prevent infection from entering the rest of your body. When the tonsils themselves becom...

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15

Infectious Mononucleosis

Infectious mononucleosis, often called "mono," is caused by the Epstein-Barr virus (EBV). It typically occurs in teenagers, but you can get it at any age. The virus is spread through saliva, which is why some peopl...

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16

The Atypical Facts About Atypical Pneumonia

Atypical pneumonia refers to pneumonia (a long infection) that is not caused by the bacteria that cause the "typical pneumonia." Typical pneumonia tends to be more serious than atypical pneumonia. This type of pneumoni...

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17

Rhinitis

Rhinitis is inflammation of the nasal cavity lining (inside the nose). It is often caused by allergies. It may also be caused by environmental factors such as pollution, weather changes, stress, infections, and som...

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18

Pharyngitis

Pharyngitis is inflammation of the pharynx-the back of the throat. This can cause a sore throat, as well as scratchiness in the throat and difficulty swallowing. According to the University of Maryland Medical Center...

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19

CFS (Chronic Fatigue Syndrome)

Chronic fatigue syndrome (CFS) is a debilitating disorder characterized by intense fatigue that cannot be cured with sleep. Mental and physical activities may cause your symptoms to worsen. When your fatigue cannot b...

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20

Chickenpox

Also known as varicella, chickenpox is a virus that often affects children. It is characterized by itchy red blisters that appear all over the body. Chickenpox was once so common it was considered a childhood rite o...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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