Labor and delivery
Learning Center
Groin pain (male)
Learn more about the causes and symptoms of this type of pain. Also find out how you can treat it at home and when to get a checkup.
HPV infection: A cause of cancer in men?
Learn what types of cancer human papillomavirus can cause and how you can lower your risk.
HPV test
This test can help show the risk of cervical cancer. Learn more about how to prepare and what the results may mean.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
Hematocrit test
Learn about this red blood cell blood test, including why it's used and what to expect.
Hodgkin's vs. non-Hodgkin's lymphoma: What's the difference?
Learn how types of lymphomas are determined using lab tests to examine cancer cells.
Holter monitor
This wearable device keeps track of the heart's rhythm during daily activities. Learn when you might need one and what to expect.
Home birth: Know the pros and cons
Understand the possible risks and how to plan and prepare for a home birth.
Hormone therapy for prostate cancer
Find out what to expect during testosterone-blocking therapy. Learn about choices, including medicines and surgery.
How do COVID-19 antibody tests differ from diagnostic tests?
Antibody testing shows whether you've had the COVID-19 virus in the past. It's not the same as testing to see whether you have the virus now.
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