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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.
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.
Tonsillitis
Learn about the causes and treatment of tonsillitis, a common cause of sore throat in children.
Thrombocytopenia (low platelet count)
Thrombocytopenia — Comprehensive overview covers symptoms, causes, treatment of a low platelet count.
Thalassemia
Some forms of this inherited blood disorder usually show up before the age of 2, often causing anemia. More severe forms of the disease require regular blood transfusions.
Tetralogy of Fallot
These four heart problems present at birth change how blood flows through the body. Know the symptoms and treatment.
Temporal lobe seizure
These seizures begin in the temporal lobes of the brain. They can trigger a variety of symptoms such as odd feelings, fear and unresponsiveness.
Takayasu's arteritis
Understand this rare disease that damages the aorta, the large artery that carries blood from your heart to the rest of your body.
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