Healthy diets
Learning Center
Transposition of the great arteries
This serious, rare heart problem present at birth requires surgery to correct. Learn about its symptoms and treatment.
Transient ischemic attack (TIA)
This short bout of stroke-like symptoms doesn't cause permanent damage. But it may serve as a warning sign of a future stroke.
Transient global amnesia
When your memory suddenly disappears, it can be frightening — but transient global amnesia is typically temporary and harmless.
Trachoma
Trachoma is the leading preventable cause of blindness worldwide. Find out about symptoms, treatment and prevention of this serious eye disease.
Toxoplasmosis
Learn about symptoms, causes, treatment and prevention of this parasitic infection that can cause severe disease.
Toxic shock syndrome
Toxic shock syndrome is a rare, potentially fatal complication of certain types of bacterial infections. Learn about symptoms, risk factors and treatment.
Toxic hepatitis
Find out about symptoms and treatment for toxic hepatitis — liver inflammation caused by exposure to certain substances, such as alcohol or medications.
Tourette syndrome
The repetitive movements and sounds called tics that characterize Tourette syndrome can affect daily life — but there are ways to manage them.
Total anomalous pulmonary venous return (TAPVR)
In this congenital heart condition, the lung's blood vessels attach to the wrong places in the heart. Know the symptoms and how it's diagnosed.
Torn meniscus
Any activity that causes you to twist or rotate your knee, especially when putting your full weight on it, can cause this common knee injury.
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