Find out the symptoms of STDs and what you can do to prevent them, along with the treatments if you're diagnosed with one.
Disease
Skull base tumors
Skull base tumors are abnormal growths at the base of the skull that can be benign or cancerous and cause symptoms such as headaches, dizziness and nosebleeds. Treatment may include surgery, radiation or careful monitoring.
Disease
Sleep terrors (night terrors)
These are times of screaming or crying, intense fear, and sometimes waving arms and legs during sleep. The person often sits up in bed, looking scared.
Disease
Soft tissue sarcoma
This rare type of cancer can begin in the muscles, fat, blood vessels, nerves, tendons and the lining of joints. Treatment usually includes surgery.
Disease
Solitary fibrous tumor
This rare type of tumor most often occurs near the lungs. Surgery is usually the treatment.
Disease
Sore throat
Find out what causes this common affliction, when to see a doctor and what you can do to get relief from a sore throat.
Disease
Spinal cord tumor
Spinal cord tumors can cause serious problems such as pain and paralysis. Find out about diagnosis and treatment.
Disease
Spinal tumor and spinal mass
Learn about symptoms, causes, risk factors, diagnosis and treatment options for tumors affecting the spine.
Disease
Strep throat
Learn more about the symptoms, causes and treatment of this throat bacterial infection in children and adults.
Disease
Suicide and suicidal thoughts
Suicide can be prevented. Learn suicide warning signs and how to reach out for immediate help and professional treatment.
Disease
Supraventricular tachycardia
SVT is a heart rhythm disorder that causes a very fast or erratic heartbeat. The heart may beat more than 150 times a minute. Know the symptoms and when it's treated.
Disease
T-cell lymphoma
Find out more about the symptoms, diagnosis and treatment of this type of non-Hodgkin lymphoma.