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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.


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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Amebiasis is a parasitic infection, common in the tropics and caused by contaminated water. Symptoms can be severe and usually start 1-4 weeks after exposure.

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Adult Brain Tumor

A brain tumor is the growth of abnormal cells in your brain. Whether the growth is cancerous or not, any brain tumor is serious. Symptoms can include both cognitive and physical control problems.

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Chronic Pancreatitis

Chronic, or long-term, pancreatitis is an inflammation of your pancreas that impairs your body's ability to digest food and regulate blood sugar.

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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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Acoustic Neuroma

Acoustic neuromas are noncancerous tumors that grow on the nerve that connects the brain and ear. They can cause dizziness, vertigo, headache, vision problems, and pain.

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Diabetes Overview

Diabetes is a group of chronic metabolic diseases caused by defects in insulin production or function. Advanced diabetes may cause stomach pain, nausea, dizziness, and cramps.

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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.

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Irritable Bowel Syndrome

Irritable bowel syndrome (IBS) is a chronic condition that affects the large intestine and causes many uncomfortable symptoms, such as bloating, gas, cramping, diarrhea, constipation, and pain.

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Infectious Mononucleosis

Infectious mononucleosis, or "mono," is a group of symptoms caused by the Epstein-Barr virus. One potential symptom is a pink rash that looks like the measles.

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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.

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Alcoholism is also known as alcohol dependence. It occurs when you drink so much over time that your body becomes dependent on or addicted to alcohol. When this happens, alcohol use becomes the most important thing i...

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Caffeine Overdose

The recommended amount of caffeine is usually 400 mg per day for healthy adults. Caffeine overdose may occur if you ingest more than this amount.

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PMS (Premenstrual Syndrome)

PMS symptoms start five to 11 days before menstruation and typically go away once menstruation begins. The cause of PMS is unknown.

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Diverticula are bulging sacs that can appear in the lining of your large intestine. Diverticulitis occurs when these sacs get acutely infected or inflamed.

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Allergies Overview

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

An allergy is the immune system's response to a foreign substance (allergen) that is not typically harmful to a person's body. This attack response may involve inflammation, sneezing, and a host of other symptoms.

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Glaucoma is a term for several eye conditions that can damage your optic nerve. It has many types, and over time it can lead to vision loss.

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Epilepsy Overview

Epilepsy is a neurological condition caused by malfunctioning brain cells that result in seizures. There is no cure for this disorder but episodes can become less frequent.

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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.

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Partial Seizures

The human brain works by sending electrical signals through neurons, which are nerve cells. A seizure occurs when there's a surge in this electrical activity.

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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.