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Let's see if we can figure out what's causing your chills.
Select additional symptoms and we'll narrow your results.

What causes chills? 77 possible conditions

The term “chills” refers to a feeling of being cold without an apparent cause. You get this feeling when your muscles repeatedly expand and contract.  Read more

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

1

Cold and Flu Overview

Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared symptoms include headache, cough, sore throat, and more.

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2

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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3

Tonsillitis

Tonsillitis can occur at any age and is a common childhood ailment. It is most often diagnosed in children from preschool age through their midteens.

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4

Strep Throat

Strep throat is a bacterial infection that causes inflammation and pain in the throat. This common condition is caused by group A Streptococcus bacteria.

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5

Bladder Infection

A bladder infection is a bacterial infection. It also may be called a urinary tract infection (UTI), which refers to infection anywhere in the urinary tract, including the bladder, kidneys, ureters, or urethra.

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6

Malaria

Malaria is a life-threatening disease. It's typically transmitted through the bite of an infected Anopheles mosquito.

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7

Sepsis

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

One life-threatening complication of infection is sepsis, which often occurs in people who are elderly or have weak immune systems. Patches of discolored skin is a symptom of severe sepsis.

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8

Peritonsillar Abscess

A peritonsillar abscess is usually a complication of tonsillitis or another bacterial infection. Get it treated quickly to avoid serious problems.

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9

Leukemia

Leukemia is a cancer of the blood cells. Excessive sweating at night, fatigue, weight loss, bone pain, and easy bleeding or bruising are signs of this disease.

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10

AIDS

If left untreated, HIV can lead to AIDS. AIDS weakens your immune system to the point where it can no longer fight off disease and infection. Learn more.

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11

Septicemia

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

Septicemia is bacterial infection spread through the entire vascular system of the body. If untreated it can result in sepsis, a life-threatening inflammation.

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12

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.

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13

Pneumonia

Pneumonia is an infection of the lungs caused by fungi, bacteria, or viruses. General symptoms include chest pain, fever, cough, and difficulty breathing.

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14

Tuberculosis

Tuberculosis (TB) is a highly infectious disease that primarily affects the lungs. Read more on whom it affects and how to treat it.

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15

Viral Gastroenteritis

Viral gastroenteritis, also known as the stomach flu, is caused by a number of different viruses. Its symptoms usually last for two to three days.

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16

Swine Flu

Swine flu, or H1N1, is highly contagious and can spread quickly from person to person. A simple sneeze may cause thousands of germs to spread through the air. Symptoms are similar to regular influenza.

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17

Meningitis

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

Meningitis can affect you differently depending on your age. Learn more about the symptoms and risk factors for each age group.

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18

The Atypical Facts About Atypical Pneumonia

Are your cold symptoms lasting longer than a week? Do you have walking pneumonia? Learn how to treat and prevent this condition.

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19

Chronic Bronchitis

Acute bronchitis causes coughs that produce mucus. You don't need antibiotics, but bed rest and home care can help.

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20

Infectious Mononucleosis

Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).

Read more »

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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