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Learning Center
Stage 4 prostate cancer
Find out about diagnosis and treatment of this cancer that has spread to the lymph nodes or other parts of the body.
Varicocele
Find out how this condition involving the enlargement of veins in the scrotum can affect sperm quality and production.
Erectile dysfunction: Nonoral treatments
Get the facts about shots, penis pumps and other ED treatments that don't involve taking medicine by mouth.
Testosterone therapy: Potential benefits and risks as you age
Testosterone therapy — Explore the potential benefits and risks of increasing your testosterone level.
Male menopause: Myth or reality?
Male menopause is a catchy phrase, but it isn't accurate. Here's why.
Mayo Clinic Minute: What you should know about bats and rabies
Learn more about the risk of rabies from bats and how to prevent rabies.
Bent penis
Learn what can cause a curved erection and when you may need to see a health care provider.
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