Learn more on this disorder where everyday interactions cause significant worry and self-consciousness because you fear being judged negatively by others.
Disease
Spinal arteriovenous malformation (AVM)
Learn about how this rare blood vessel condition can affect the spinal cord.
Disease
Spontaneous coronary artery dissection (SCAD)
A torn blood vessel in the heart can cause a heart attack. Learn about the diagnosis and treatment of this medical emergency.
Disease
Sprained ankle
A sprained ankle usually can be treated with at-home care and exercises to get you back on your feet.
Disease
Sudden cardiac arrest
This medical emergency involves sudden loss of all heart activity. Learn how fast, appropriate care may help prevent death.
Disease
Sun allergy
Learn more about the causes, symptoms and treatment of this itchy rash that is an allergic reaction to sunlight.
Disease
Takayasu's arteritis
This rare disease that harms the aorta, the large artery that carries blood from the heart to the rest of the body.
Disease
Thoracic aortic aneurysm
Learn about this serious condition in which the upper part of the body's main artery becomes weak and may rupture.
Disease
Thumb arthritis
This common condition can cause pain and make simple tasks hard to do. Treatment may include medicines, splints and, sometimes, surgery.
Disease
Tongue-tie (ankyloglossia)
In this condition present at birth, a band of tissue (lingual frenulum) tethers the tongue to the floor of the mouth, restricting the range of motion.
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
Total anomalous pulmonary venous return (TAPVR)
In this heart condition present at birth, the lung's blood vessels attach to the wrong places in the heart. Know the symptoms and how it's diagnosed.