Diarrhea | Symptom Checker
Advertisement
Let's see if we can figure out what's causing your diarrhea.
Select additional symptoms and we'll narrow your results.

What causes diarrhea? 87 possible conditions

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

21

Appendicitis

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

Appendicitis is inflammation of the appendix.

Read more »

22

Colitis

Colitis is inflammation of the colon. Read about the different types and associated symptoms.

Read more »

23

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.

Read more »

24

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.

Read more »

25

The Atypical Facts About Atypical Pneumonia

Pneumonia is an infection that causes inflammation of the lungs. Atypical pneumonia is a kind that isn't caused by the bacteria that causes typical pneumonia.

Read more »

26

Swine Flu

Swine flu, or H1N1, is highly contagious and can spread quickly from person to person. A simple sneeze may cause thousands of germs to spread through the air. Symptoms are similar to regular influenza.

Read more »

27

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.

Read more »

28

Anaphylaxis

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

Anaphylaxis can occur when you have a severe reaction to certain allergens. Learn what the symptoms are and what to do if this happens.

Read more »

29

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.

Read more »

30

Cystic Fibrosis

Cystic fibrosis causes severe damage to the respiratory and digestive systems. Learn about its symptoms, causes, diagnosis, and treatment.

Read more »

31

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.

Read more »

32

Hyperthyroidism

The thyroid gland produces a hormone that controls how your cells use energy. Hyperthyroidism occurs when the body produces excessive amounts.

Read more »

33

Neutropenia

Neutropenia is a condition characterized by low levels of neutrophils, which are white blood cells that fight infection. Find out about symptoms and treatment.

Read more »

34

Snake Bites

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

A bite from a venomous snake should always be treated as a medical emergency. Even a bite from a harmless snake can lead to an allergic reaction or infection.

Read more »

35

Neuroblastoma

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

Read more »

36

Toxic Shock Syndrome

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

Toxic shock syndrome is a rare but serious condition caused by a bacterial infection. Read more about its causes and symptoms and when to see a doctor.

Read more »

37

The Deadly Potential of Digitalis: Digitalis Toxicity

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

Digitalis toxicity occurs when you take too much digitalis, a medication used to treat heart conditions.

Read more »

38

Whooping Cough (Pertussis)

Whooping cough is a serious respiratory infection that can be deadly for infants and young children, but adolescents and adults can get it too. Vaccination is available.

Read more »

39

Kwashiorkor

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.

Read more »

40

Ischemic Colitis

Ischemic colitis (IC) is inflammation of the large intestine (colon). IC occurs when not enough blood flows to the colon. Abdominal pain is a common symptom.

Read more »

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
Advertisement
Advertisement
Advertisement