Teen health
Learning Center
Thyroid peroxidase antibody test: What is it?
Sometimes this test is done to help figure out the cause of thyroid disease.
Testicular exam
Examining your testicles regularly can help you notice changes when they occur and identify testicular problems.
Teens and social media use: What's the impact?
Find out how to help limit the negative impact of these popular apps on your teenager.
Teen suicide: What parents need to know
Understand what makes teens prone to suicide, and learn what you can do to prevent it.
Teen drug abuse: Help your teen avoid drugs
Want to prevent teen drug abuse? Understand how to talk to your teen about the consequences of using drugs.
Stuttering
Stuttering, sometimes called stammering, is a speech condition that involves problems with rhythm and flow when speaking.
Stress test
This test gives important information about your heart health. Know how to prepare and what to expect.
Stool DNA test
Learn about this noninvasive colon cancer screening test that can detect DNA changes in cells collected from a stool sample.
Small cell, large cell cancer: What this means
Cancer cells are classified by how they look under a microscope. Learn common terms used to describe cancer cells.
Sentinel node biopsy
Learn what to expect during this procedure to remove lymph nodes for testing. The results can show whether cancer has spread.
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