This contagious liver infection is caused by a virus. Learn more about its symptoms, treatment and prevention, including the hepatitis A vaccine.
Disease
Benign paroxysmal positional vertigo (BPPV)
Learn more about the symptoms, causes and treatment of intense bouts of dizziness.
Disease
Acoustic neuroma (vestibular schwannoma)
This noncancerous tumor can sometimes grow on a nerve in the head, causing hearing loss and balance problems.
Disease
Hypothyroidism (underactive thyroid)
Understand what happens when your thyroid is underactive and learn about treatment for this condition.
Disease
Graves' disease
Learn about the symptoms, causes and treatment of this immune system condition that results in too much thyroid hormone.
Disease
Liver fibrosis
Repeated liver injury can cause scarring that stiffens the liver and gradually reduces its ability to function. Learn about symptoms and treatment for this often-silent liver condition.
Disease
Liver disease
The liver has a lot of vital tasks including ridding the body of toxins. Learn about problems that can affect the liver and how to avoid them.
Disease
Fecal incontinence
Learn about this common issue that causes some people to avoid social situations. Treatments are available.
Disease
Dementia
This group of symptoms with many causes affects memory, thinking and social abilities. Some symptoms may be reversible.
Disease
Lewy body dementia
This common dementia is caused by a buildup of proteins in the brain. It affects thinking, memory and movement.
Disease
Reactive arthritis
This joint pain is triggered by an infection in another part of the body — often the intestines, genitals or urinary tract.
Disease
Cancer
Find out the basics about cancer, including symptoms, causes and treatments. Learn steps you can take to prevent cancer.