What causes fever and vomiting? 76 possible conditions

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


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.

Read more »


Alcoholic Liver Disease

Damage to the liver from excessive drinking can lead to ALD. Years of alcohol abuse cause the liver to become inflamed and swollen. This damage can also cause scarring known as cirrhosis. Cirrhosis is the final stage o...

Read more »


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.

Read more »



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

Appendicitis is inflammation of the appendix, which can be fatal if left untreated. The telltale sign is pain that usually starts as mild cramping, especially on the right side, and becomes more severe over time.

Read more »


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.

Read more »


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.

Read more »



Gallstones are hard deposits in the gallbladder that can eventually block the exiting bile ducts. Abdominal pain, fever, itchy skin, and jaundice are possible symptoms.

Read more »


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.

Read more »


Non-Hodgkin’s Lymphoma

Non-Hodgkin's lymphoma is a lymphatic system cancer. Symptoms may include swollen lymph nodes, chest pain, fatigue, and fever.

Read more »


The Many Sides of Bacterial Gastroenteritis

Bacterial infections are common causes of gastrointestinal infections. This type of infection is also called "food poisoning" and is often caused by poor hygiene or ingesting foods contaminated with bacteria.

Read more »



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

Meningitis is an inflammation of the membrane that covers the brain and spinal cord. It may cause headache and fever in teens and adults, irritability in babies, and trouble breathing in young children.

Read more »


Caffeine Overdose

You're at risk for caffeine overdose when you ingest more than 200 to 300 mg of caffeine (about three 8-oz cups of coffee) in a day. Dizziness, diarrhea, headache, and severe thirst may occur.

Read more »



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

Encephalitis is inflammation of the brain tissue usually caused by viral infection. Mild symptoms include fever, headache, and vomiting. Seizure, unconsciousness, and high fever are severe signs.

Read more »


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.

Read more »


Gall Bladder Inflammation

Gallbladder disease is a term for various conditions that affect the organ. The majority of these diseases are caused by irritation to the gallbladder wall. Gallstones, cholecystitis, and polyps are gallbladder diseases.

Read more »



Tonsillitis occurs when the tonsils (the lymph tissue in your throat) become infected. Symptoms include sore throat, fever, and swollen tonsils. Fortunately, it's normally easily diagnosed and treated.

Read more »


Salmonella Food Poisoning (Salmonella Enterocolitis)

Salmonella food poisoning is an infection in the small intestine by Salmonella, which is found in animal feces. It's marked by abdominal pain, chills, diarrhea, fever, muscle pain, and vomiting.

Read more »



Diverticulitis occurs when the bulging sacs that usually appear in the lining of the large intestine get infected or inflamed. This usually causes abdominal tenderness on the lower left side, nausea, and diarrhea.

Read more »


Acute Pancreatitis

Acute pancreatitis is an inflammation in the pancreas, which causes pain and swelling in the upper left side of the abdomen, nausea, and burping.

Read more »


Pelvic Inflammatory Disease (PID)

Pelvic inflammatory disease (PID) is an infection of the reproductive organs in women caused by bacteria. It's marked by pain in the abdomen, especially during urination or sex.

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.
Add another symptom to narrow down the possibilities

I'm experiencing:

Choose from list of symptoms: