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What causes abdominal bloating, diarrhea and unintentional weight loss? 8 possible conditions

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


Lactose Intolerance

Lactose intolerence occurs when a person's small intestine can't break down lactose, an enzyme found in dairy foods. The condition can cause many gastrointestinal symptoms.

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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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Crohn’s Disease

Crohn's disease is a chronic bowel disease that causes severe inflammation of the digestive tract. It is associated with abdominal pain, diarrhea, and may affect your quality of life. Crohn's disease is characterized b...

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Colitis is inflammation of the colon, often causing discomfort and pain in the abdomen, as well as other gastrointestinal symptoms. Colitis has many possible causes, which determine the type.

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Hookworm Infections

Hookworms are parasites that affect the small intestine and lungs. The first sign of infection is usually a rash where the parasite entered the skin, followed by diarrhea.

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Celiac Disease (Gluten Intolerance)

Celiac disease is a digestive disorder caused by an immune reaction to gluten. Symptoms vary but can include arthritis, fatigue, and abdominal symptoms.

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Peripheral Neuropathy

Peripheral neuropathy occurs when nerves malfunction because they're damaged or destroyed. You'll notice a tingling, numbness, or weakness, and possibly sweating, constipation, or diarrhea.

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Autonomic Neuropathy

Damage to the nerves that help your organs to function can cause a condition called autonomic neuropathy (AN) and is associated with other conditions.

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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.