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Conditions list medically reviewed by George Krucik, MD, MBA
Giardiasis is an infection in your small intestine caused by microscopic parasites called giardia.
Bacterial infections are common causes of gastrointestinal infections. This type of infection is also called "food poisoning" and is often caused by poor hygiene or…
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.
Premenstrual syndrome causes a wide variety of emotional and physical symptoms. Learn more about it.
Appendicitis is inflammation of the appendix. Here's what it feels like, what causes it, and what tests to expect at your doctor's office.
Celiac disease is a digestive disorder caused by an abnormal immune reaction to gluten. Learn about celiac disease systems, diagnosis, and treatment.
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.
Learn the symptoms of IBS, what can trigger them, adjustments you can make to ease them, and what can treat them.
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.
Hookworms are parasites that affect the small intestine and lungs. Read more about the symptoms of this infection and treatment options.
Addison's disease occurs when the adrenal cortex is damaged and the adrenal glands do not produce enough of the steroid hormones cortisol and aldosterone.
Taking too much acetaminophen can cause liver damage. Learn about overdose causes, treatment, prevention, and more.
Anthrax is a serious illness caused by a microbe called Bacillus anthracis that lives in soil. Read about the symptoms of anthrax.
Pancreatic cancer is one of the most deadly forms of cancer and is often difficult to detect. Learn more about symptoms and treatments.
Learn about the causes and symptoms of the West Nile virus.
Leishmaniasis is a parasitic disease caused by the Leishmania parasite found in sand flies.
Staphylococcus aureus is a common bacterium found in the nose and on the skin of some people and animals. It is a common cause of food poisoning.
Radiation enteritis is a common complication of radiation treatment near the abdomen. It occurs when radiation irritates your small intestine.
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.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.