These common headaches can be triggered by stress. Healthy habits and medicines can help manage them.
Disease
Testicular cancer
Learn about cancer that starts in the testicles. Treatments include surgery, chemotherapy and radiation therapy.
Disease
Testicular torsion
Sudden, severe pain in the scrotum could be testicular torsion. Learn about symptoms and treatment for this health emergency.
Disease
Tetanus
Learn about treatment of the serious bacterial infection commonly known as lockjaw and the vaccines that prevent it.
Disease
Tetralogy of Fallot
These four heart problems present at birth change how blood flows through the body. Know the symptoms and treatment.
Disease
Thalassemia
Some forms of this inherited blood disorder usually show up before the age of 2. Often, they cause anemia. Worse forms of the disease require regular blood transfusions.
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
Thoracic outlet syndrome
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.