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Sudden infant death syndrome (SIDS) is the sudden and unexplained death of a baby younger than 1 year old. SIDS is sometimes called crib death because the death may happen when a baby is sleeping in a crib. It’s one of the leading causes of death in babies from ages 1 month to 1 year. Read on to learn more. 

Tendonitis is when a tendon is inflamed. When a tendon is inflamed, it can cause swelling, pain, and discomfort. Another problem called tenosynovitis is linked to tendonitis. This is the inflammation of the lining of the tendon sheath around a tendon.

Learn about tests that may be used to help diagnose a stroke, including a CT scan, an MRI scan, and an EEG.

A stye is a tender red bump on the edge of your eyelid.

Swimmer's ear (otitis externa) is an infection of your outer ear canal. Here's what you need to know about symptoms, diagnosis, and treatment.

Ticks feed on human blood. Most tick bites are harmless, but some species can cause serious diseases.

Tetanus is a severe illness of the central nervous system caused by bacteria. Learn about the causes, risk factors, symptoms, treatment, prevention, and more.

Tennis elbow happens when the muscles and tendons in the elbow area are torn or damaged. Read on to learn what to do if your child has tennis elbow.

Supraventricular tachycardia (SVT) is a fast heartbeat that is abnormal. Learn more about this condition, including causes, symptoms, diagnosis, and treatment.