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Conditions list medically reviewed by George Krucik, MD, MBA
A nutritional deficiency occurs when the body doesn't absorb the necessary amount of a nutrient. Deficiencies can lead to a variety of health problems.
There are two main types of lung cancer: non-small cell and small-cell. Learn about how these lung cancers are caused, your treatment options, and more.
Learn about liver cancer symptoms, types, diagnosis, treatment, and prevention.
Stomach ulcers are painful sores in the stomach lining or small intestine. They occur when the mucus that protects the stomach from digestive juices is reduced.
Esophageal cancer occurs when a malignant (cancerous) tumor forms in the lining of the esophagus, which is the muscular tube responsible for moving food from the throat…
Cirrhosis is the severe scarring and poor function of the liver caused by long-term exposure to toxins such as alcohol or viral infections.
Stomach cancer occurs when cancerous cells form in the stomach lining. Because it's difficult to detect, it's often not diagnosed until it's more advanced.
Tuberculosis (TB) is a highly infectious disease that primarily affects the lungs. Read more on whom it affects and how to treat it.
Hepatitis refers to an inflammatory condition of the liver. It's commonly caused by a viral infection, but there are other possible causes of hepatitis.
Peptic ulcers are painful sores in the lining of the stomach, esophagus, or small intestine. Peptic ulcers are a fairly common health problem.
Crohn's is a chronic bowel disease that causes inflammation of your digestive tract. Learn more about treatment and prevention.
Colitis is inflammation of the colon. Read about the different types and associated symptoms.
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.
Achalasia occurs when your lower esophageal sphincter doesn't work properly. Learn more about the causes and treatments.
Hookworms are parasites that affect the small intestine and lungs. Read more about the symptoms of this infection and treatment options.
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.
The thyroid gland produces a hormone that controls how your cells use energy. Hyperthyroidism occurs when the body produces excessive amounts.
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…
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.
Cancer of the uterine endometrium, or endometrial cancer, is a type of cancer that starts in the inner lining of your uterus called the endometrium.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.