Mayo Clinic diet
Learning Center
Scrotal masses
Lumps in the scrotum have various causes. Even painless lumps should be checked promptly by a health care professional.
Scorpion sting
Scorpion stings are painful but rarely life-threatening. Young children and older adults are most at risk of serious complications.
Scoliosis
This sideways curvature of the spine occurs most often during the growth spurt just before puberty. Treatment may include braces or surgery.
Scarlet fever
Learn more about the symptoms, causes, complications and treatment of this strep bacterial infection that causes a red rash, sore throat and high fever.
Sarcoma
Learn about this cancer that forms in the bones and the connective tissue. Find out about symptoms, diagnosis, treatment and the many types of sarcoma.
Salmonella infection
This common bacterial infection is spread through contaminated food or water and affects the intestinal tract. Learn more about prevention and treatment.
Ruptured spleen
A break in the surface of your spleen, usually from a forceful blow to your abdomen, can cause life-threatening internal bleeding.
Ruptured eardrum (perforated eardrum)
A ruptured eardrum is a hole or tear in your eardrum, the thin tissue that separates your ear canal from your middle ear.
Rumination syndrome
Learn about this condition that results in regurgitating and reswallowing food. Behavioral therapy and medicine are treatments.
Rubella
Learn more about the symptoms and prevention of this contagious viral infection best known for its distinctive red rash.
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