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What causes nausea? 179 possible conditions

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



Bleeding or spotting, increased need to urinate, tender breasts, fatigue, nausea, and missed period are signs of pregnancy.

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Food Allergy Basics

Food allergies are overblown responses by the immune system to foods that aren't typically harmful - like eggs and peanuts. Continue reading and learn more about food allergies, and how to prevent or treat sever...

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Labyrinthitis is an inner ear disorder in which a nerve that detects head movement becomes inflamed. Symptoms include dizziness, vertigo, and nausea.

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Menieres Disease

Meniere's disease is a disorder of the inner ear. It's not known what causes it, but there are a variety of treatments available to help with the symptoms.

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Head Injury

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

A head injury could be an injury to the brain, skull, or scalp. It can vary in severity depending on the cause. In some cases face swelling can be a sign of a head injury.

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Painful Menstrual Periods

Menstruation is a monthly occurrence for women in which the body sheds the uterine lining, which is later passed through the vagina. Pain, cramping, and discomfort during menstruation is normal. Excessive pain is not.

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

A concussion is a mild traumatic brain injury. Usually it occurs after an impact to your head or after a whiplash-type injury. A concussion can cause many severe symptoms that affect brain function.

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E. coli Infection

E. coli is a type of bacteria normally found in intestines. But certain kinds of E. coli can cause infection and severe symptoms like diarrhea and dehydration.

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Angina Pectoris

Learn about stable angina and what causes it. Find information on stable angina symptoms, risk factors, diagnosis, and treatment.

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Alcohol Withdrawal Delirium

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

Alcohol withdrawal delirium (AWD) is the most serious form of alcohol withdrawal. It causes sudden and severe problems in your brain and nervous system. Approximately five percent of hospital patients being treated fo...

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Unstable Angina

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

Angina is a condition marked by a crushing pain in your chest. It is due to inadequate blood supply to your heart muscle, which deprives your heart of oxygen.

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Ischemic Cardiomyopathy

Ischemic cardiomyopathy is a condition that occurs when the heart muscle is weakened due to insufficient blood flow to the heart's muscle. This inhibits the heart's ability to pump blood and can lead to heart failure.

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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.

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Hyperemesis Gravidarum

Hyperemesis gravidarum is an extreme form of morning sickness that causes severe and persistent nausea and vomiting during pregnancy. It can cause complications to the pregnancy due to weight loss and dehydration.

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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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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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Panic Disorder

Panic disorder is a condition chararcterized by persistent anxiety and recurrent panic attacks. Sweating or chills are possible signs of a panic attack.

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Benign Positional Vertigo

Benign positional vertigo (BPV) is the most common cause of vertigo. An episode is generally triggered by changing the position of your head.

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Malignant Hypertension (Arteriolar Nephrosclerosis)

This form of high blood pressure comes on very quickly and requires immediate medical help. You're especially at risk if you already have hypertension or smoke.

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The number one symptom of shigellosis, a bacterial infection, is diarrhea. Its symptoms vary in intensity, so you can have this infection and not know it.

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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.