Learn more about this unusual disorder that disrupts the body's fluid balance, causing too much urination and possibly leading to dehydration.
Disease
Behcet disease
This rare condition causes blood vessel swelling throughout the body. Symptoms depend on which parts of the body the condition affects.
Disease
Ataxia
Often caused by an underlying condition, this loss of muscle control and coordination can impact movement, speech and swallowing.
Disease
Pituitary tumors
Learn more about the symptoms, causes and treatment of growths that develop in the pituitary gland.
Disease
Burning mouth syndrome
This burning sensation, without an obvious cause, may affect the tongue, gums, lips, cheeks, roof of your mouth or large areas of your mouth.
Disease
Periodontitis
This serious gum infection damages the soft tissue and can destroy the bone that supports your teeth. It can cause teeth to loosen or lead to tooth loss.
Disease
Esophagitis
An inflamed, sore esophagus can make it hard to swallow and can cause chest pain when you eat. Find out what causes this condition and your options for treatment.
Disease
Functional dyspepsia
Learn about functional dyspepsia, a digestive disorder with no clear cause. Treatment may help relieve this common condition.
Disease
Geographic atrophy
This serious eye condition can occur in people with macular degeneration. Find out about its symptoms and treatments.
Disease
Interstitial lung disease
This group of lung diseases cause progressive lung tissue scarring and affect your ability to breathe and get enough oxygen into your bloodstream.
Disease
Syphilis
Understand how this infectious disease spreads, what you can do to prevent it and how it's treated.
Disease
Patent foramen ovale
Learn more about the causes and complications of this condition in which a hole in the heart doesn't close the way it should after birth.