First trimester
Learning Center
Cryotherapy for prostate cancer
Find out how very cold temperatures are used to freeze tissue and treat prostate cancer. Learn about the side effects and potential benefits of cryotherapy.
Erectile dysfunction and diabetes: Take control today
Learn strategies to prevent or treat this common and frustrating potential complication of diabetes.
Measles vaccine: Can I get the measles if I've already been vaccinated?
Is it possible to get measles from someone else if you've been vaccinated?
Sex during pregnancy: What's OK, what's not
Questions about sex during pregnancy? Here's what you need to know.
COVID-19 vaccines for kids: What you need to know
Learn about the safety and effectiveness of COVID-19 vaccines for kids, the possible side effects, and the benefits of vaccination.
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).
Prostatitis: Can sexual activity make it worse?
Some men with prostatitis have pain with ejaculation or sexual activity.
Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
Ambiguous genitalia
Learn about causes and treatment of ambiguous genitalia, a rare disorder of sex development in which a baby's external genitals are not clearly male or female.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
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