Diarrhea, Irritable mood: 11 Possible Causes
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What causes diarrhea and irritable mood? 11 possible conditions

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


Lactose Intolerance

Lactose intolerance is the inability to break down a type of natural sugar called lactose. Lactose is commonly found in dairy products, such as milk and yogurt. A person becomes lactose intolerant when his or her smal...

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Celiac Disease (Gluten Intolerance)

Celiac disease is a digestive disorder caused by an abnormal immune reaction to gluten. Learn about celiac disease systems, diagnosis, and treatment.

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PMS (Premenstrual Syndrome)

Premenstrual syndrome causes a wide variety of emotional and physical symptoms. Learn more about it.

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Kwashiorkor is a serious form of malnutrition caused by a lack of protein. Learn how to spot this condition and how it can be prevented.

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Acetaminophen Overdose

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

Taking too much acetaminophen can cause liver damage. Learn about overdose causes, treatment, prevention, and more.

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Neuroblastoma is a rare cancer that affects the sympathetic nervous system, usually in young children. Learn about the symptoms and treatment options.

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Drug Allergy Overview

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

A drug allergy is an allergic reaction to a medication. Your immune system identifies the drug as foreign and acts to eliminate it from your body.

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Intestinal Obstruction

If your small or large intestine becomes blocked, fluid and digested food cannot move through. This can cause bloating, stomach cramps, and burping.

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Hirschsprung Disease

Hirschsprung disease is a blockage that occurs in the colon in about one of every 5,000 births. The cause is unknown, but tends to affect more boys and those with Down syndrome or another inherited condition.

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Poliomyelitis, or polio, is a highly contagious disease that is caused by a virus that attacks the body's nervous system.

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Intussusception occurs when a portion of the intestine folds inside another part. This causes a blockage. Find out about causes and treatment.

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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.