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Disease

Pseudotumor cerebri (idiopathic intracranial hypertension)

Headaches and vision loss can result from this increased pressure inside your brain that occurs with no obvious reason.
Disease

Pulmonary hypertension

This lung condition makes the heart work harder and become weak. Changes in genes and some medicines and diseases can cause it. Learn more.
Disease

Ramsay Hunt syndrome

A shingles outbreak can affect the facial nerve near one of your ears, potentially causing facial paralysis and hearing loss.
Disease

Secondary hypertension

Learn more about high blood pressure that's caused by another medical condition. Find out about risk factors and treatments to help you stay healthy.
Disease

Sex headaches

Learn about the causes and treatment of this type of headache.
Disease

Sinus headaches

Sinus headaches are often to blame for headache with facial pain — but that pain might actually be a migraine.
Disease

Spinal headaches

These headaches can happen after a spinal tap procedure or spinal anesthesia, and usually don’t require treatment.
Disease

Subarachnoid hemorrhage

Learn about how this type of bleeding in the brain is diagnosed and treated.
Disease

Subconjunctival hemorrhage (broken blood vessel in eye)

Subconjunctival hemorrhage is a broken blood vessel in the eye — learn more about this common, harmless condition that clears up without treatment.
Disease

Tension headache

These common headaches can be triggered by stress. Healthy habits and medicines can help manage them.
Disease

Thunderclap headaches

These headaches are sudden and severe, and can warn of a life-threatening condition — so seek immediate medical attention.
Disease

Toxic hepatitis

Find out about symptoms and treatment of this liver disease. It's caused by exposure to certain substances, such as alcohol or medicines.
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