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 for toxic hepatitis — liver inflammation caused by exposure to certain substances, such as alcohol or medications.