LGBTQ health
Learning Center
Transgender facts
Know the basics about sex and gender, including common terms and definitions.
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.
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.
Tonsillectomy
Learn how to prepare for a tonsillectomy and what to expect from the surgery.
Thyroid peroxidase antibody test: What is it?
Sometimes this test is done to help figure out the cause of thyroid disease.
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.
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