This group of conditions is caused by pressure on the blood vessels or nerves between the collarbone and rib. The pressure can cause pain and numbness.
Disease
Throat cancer
Learn more about this type of cancer that affects your throat (pharynx), voice box (larynx) or tonsils.
Disease
Thrombocytopenia (low platelet count)
Problems with how blood clots can lead to excessive bleeding or blood clotting. Learn about the risks and treatments for a low blood platelet count.
Disease
Thrombocytosis
This condition occurs when your body produces too many platelets, the cells that help blood clot. Thrombocytosis can cause clotting or bleeding problems.
Disease
Thrombophlebitis
Learn more about this inflammation of a blood vessel that can interrupt flow.
Disease
Thumb arthritis
This common condition can cause pain and mobility issues, making simple tasks difficult. Treatment may include medications, splints and sometimes surgery.
Disease
Thunderclap headaches
These headaches are sudden and severe, and can warn of a life-threatening condition — so seek immediate medical attention.
Disease
Thyroid cancer
Learn about thyroid cancer diagnosis and treatment, including thyroid surgery, radioactive iodine and thyroid hormone therapy.
Disease
Thyroid nodules
Find out what can cause lumps in the thyroid gland and how they can be treated.
Disease
Tinea versicolor
Learn about the symptoms, causes, treatments of this common skin infection that usually responds to treatment.
Disease
Tinnitus
Tinnitus can be caused by many health conditions. As such, the symptoms and treatment options vary by person. Get the facts in this comprehensive overview.
Disease
Toe walking in children
Walking on toes or the balls of the feet is fairly common in children who are learning to walk. Most children outgrow it.