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Disease

Benign prostatic hyperplasia (BPH)

This common problem, also known as an enlarged prostate, can be treated.
Disease

Orchitis

This infection of one or both testicles can cause pain and infertility. A bacterial infection or the mumps virus is the usual cause.
Disease

Schizophrenia

This mental condition can lead to hallucinations, delusions, and very disordered thinking and behavior. It can make daily living hard, but it's treatable.
Disease

Mood disorders

These conditions affect emotions. Depression causes a feeling of deep sadness. Bipolar disorder goes back and forth from being very sad to being very happy.
Disease

Sleep apnea

This condition causes repeated stops and starts in breathing during sleep. Snoring loudly can be a sign of this sleep condition.
Disease

Tooth abscess

A bacterial infection at the tip of the tooth root usually occurs from an untreated dental cavity, an injury or prior dental work.
Disease

Creutzfeldt-Jakob disease

Learn what can put someone at risk of developing this rare brain disorder that causes dementia.
Disease

Multiple sclerosis

This nervous system condition causes a range of symptoms. While there's no cure, it's possible to have long periods of remission.
Disease

Hypothyroidism (underactive thyroid)

Understand what happens when your thyroid is underactive and learn about treatment for this condition.
Disease

Hypoglycemia

Low blood sugar can cause uncomfortable symptoms, such as dizziness and confusion, and can quickly become serious if left untreated.
Disease

Keratitis

An inflamed, red eye can be a minor nuisance — but sometimes it means a more serious problem. Find out about symptoms, treatment and prevention for this potentially dangerous eye condition.
Disease

Lymphedema

Damaged or removed lymph nodes can affect how lymph fluid drains. Fluid buildup leads to swelling. Treatments include compression and massage.
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