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What causes abdominal pain and nausea? 96 possible conditions

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



Endometriosis is a disorder in which the tissue that forms the lining of your uterus grows outside of your uterine cavity. The lining is called the endometrium.

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Biliary (Bile Duct) Obstruction

A biliary obstruction blocks the bile ducts, which carry bile to the small intestine for digestion and waste removal. An obstruction can be caused by many factors, including gallstones, inflammation, cysts, or tumors.

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Colorectal (Colon) Cancer

Colorectal cancer is a cancer that originates in the rectum or colon. Both of these organs are located at the lower portion of your digestive system. The colon is at the end of the large intestine and the rectum is a...

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Giardiasis is an infection in your small intestine. It's caused by a microscopic parasite. Giardiasis spreads through contact with infected people.

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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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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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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.

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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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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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Ectopic Pregnancy

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

Ectopic pregnancies occur when a fertilized egg fails to attach to the uterus. In most ectopic pregnancies, the egg will attach to the fallopian tubes. Less common, it may also attach to the abdominal cavity or cervix...

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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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Hiatal Hernia

A hiatal hernia occurs when the upper part of your stomach pushes up through your diaphragm and into your chest cavity. Common symptoms include heartburn, belching, and abdominal discomfort.

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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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H. Pylori Infection

H. pylori are a type of bacteria that may not cause problems. However, sometimes it can cause pain, bloating, and burping, and may lead to ulcers or stomach cancer.

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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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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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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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A hernia occurs when an organ pushes through the muscle or tissue that holds it in place. Hernias are most common in the abdomen but can appear elsewhere.

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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.