Alternative medicine
Learning Center
Can vitamin D protect against coronavirus disease 2019 (COVID-19)?
Find out what the research says about vitamin D and coronavirus disease 2019 (COVID-19).
Different types of COVID-19 vaccines: How they work
Find out how different COVID-19 vaccines cause your body to create antibodies that will fight the COVID-19 virus.
Children and gender identity: Supporting your child
Learn how to talk to children about their internal sense of gender. Also find out how to support their gender expression and advocate for them.
Retractile testicle
Find out about this condition that allows the testicle to move between the scrotum and groin.
Varicocele
Find out how this condition involving the enlargement of veins in the scrotum can affect sperm quality and production.
Abnormal sperm morphology: What does it mean?
Abnormal sperm morphology may be a contributing factor in male infertility.
Active surveillance for prostate cancer
Learn about why doctors may recommend active surveillance for prostate cancer and what to expect.
Testicular exam
Examining your testicles regularly can help you notice changes when they occur and identify testicular problems.
Bedsores (pressure ulcers)
These areas of damaged skin and tissue are caused by sustained pressure — often from a bed or wheelchair — that reduces blood flow to vulnerable areas of the body.
Mayo Clinic Minute: Is tinnitus causing that ringing in your ear?
Learn about a condition that causes ringing in your ear.
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