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.
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…
Ulcerative colitis is an inflammatory bowel disease. Learn about its causes, symptoms, and treatment options.
Celiac disease is a digestive disorder caused by an abnormal immune reaction to gluten. Learn about celiac disease systems, diagnosis, and treatment.
Crohn's is a chronic bowel disease that causes inflammation of your digestive tract. Learn more about treatment and prevention.
Premenstrual syndrome causes a wide variety of emotional and physical symptoms. Learn more about it.
Colorectal cancer is a cancer that starts in the rectum or colon, located in the lower portion of the digestive system.
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.
Diabetic neuropathy is a serious and common complication of type 2 diabetes that usually develops slowly. We'll go into detail about its symptoms, causes, treatments…
If left untreated, HIV can lead to AIDS. AIDS weakens your immune system to the point where it can no longer fight off disease and infection. Learn more.
Colitis is inflammation of the colon. Read about the different types and associated symptoms.
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.
Cystic fibrosis causes severe damage to the respiratory and digestive systems. Learn about its symptoms, causes, diagnosis, and treatment.
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.
Peripheral neuropathy is a disorder that occurs when your peripheral nerves malfunction because they're damaged.
The thyroid gland produces a hormone that controls how your cells use energy. Hyperthyroidism occurs when the body produces excessive amounts.
Megaloblastic anemia is a blood disorder marked by the appearance of very large red blood cells that crowd out healthy cells, causing anemia.
Neuroblastoma is a rare cancer that affects the sympathetic nervous system, usually in young children. Learn about the symptoms and treatment options.
Legionnaires' disease is a severe type of pneumonia, or lung infection. Learn about its symptoms, causes, treatment, and prevention.
Ebola disease is a rare, often fatal illness. One of its late-stage symptoms is a bleeding rash over the entire body.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.