Conditions list medically reviewed by George Krucik, MD, MBA
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…
Celiac disease is a digestive disorder caused by an abnormal immune reaction to gluten. Learn about celiac disease systems, diagnosis, and treatment.
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.
Crohn's is a chronic bowel disease that causes inflammation of your digestive tract. Learn more about treatment and prevention.
The thyroid gland produces a hormone that controls how your cells use energy. Hyperthyroidism occurs when the body produces excessive amounts.
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.
Hookworms are parasites that affect the small intestine and lungs. Read more about the symptoms of this infection and treatment options.
Colitis is inflammation of the colon. Read about the different types and associated symptoms.
Cystic fibrosis causes severe damage to the respiratory and digestive systems. Learn about its symptoms, causes, diagnosis, and treatment.
Pancreatic cancer is one of the most deadly forms of cancer and is often difficult to detect. Learn more about symptoms and treatments.
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.
Peripheral neuropathy is a disorder that occurs when your peripheral nerves malfunction because they're damaged.
Leishmaniasis is a parasitic disease caused by the Leishmania parasite found in sand flies.
Roundworms are a type of parasitic worm. Infections caused by roundworms are relatively common. Ascariasis is the most common roundworm infection.
Q fever is an infection caused by the bacteria Coxiella burnetii. The bacteria are most commonly found in cattle, sheep, and goats.
Tropical sprue makes it difficult for your body to absorb certain nutrients. Read about signs and treatment.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.