Conditions list medically reviewed by George Krucik, MD, MBA
Food poisoning occurs when you consume foods contaminated with bacteria, viruses, or parasites. Symptoms are usually uncomfortable but not severe.
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.
Food allergies are overblown responses by the immune system to foods that aren't typically harmful - like eggs and peanuts. Continue reading and learn more about food…
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…
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.
Giardiasis is an infection in your small intestine caused by microscopic parasites called giardia. Read on to learn more about it.
Diverticulitis occurs when the bulging sacs that appear in the lining of your large intestine, or colon, get acutely infected, or inflamed. Symptoms include sudden…
Celiac disease is a digestive disorder caused by an abnormal immune reaction to gluten. Learn about celiac disease systems, diagnosis, and treatment.
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.
Colorectal cancer is a cancer that starts in the rectum or colon, located in the lower portion of the digestive system.
If your small or large intestine becomes blocked, fluid and digested food can't pass through. This can cause bloating, stomach cramps, and burping.
Necrotizing enterocolitis occurs when the intestinal tissue becomes damaged and dies. Learn about its symptoms, causes, and how it's diagnosed.
Premenstrual syndrome causes a wide variety of emotional and physical symptoms. Learn more about it.
Shigellosis is a bacterial infection that affects the digestive system. The Shigella bacterium is spread through contact with contaminated feces.
Learn the symptoms of IBS, what can trigger them, adjustments you can make to ease them, and what can treat them.
Menstruation occurs when the uterus sheds its lining once a month. The lining passes through a small opening in the cervix and out through the vaginal canal.
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.
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.
Anaphylaxis can occur when you have a severe reaction to certain allergens. Learn what the symptoms are and what to do if this happens.
Learn about what causes allergies, the different types of allergies, and how they're treated.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.