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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.
Post-vasectomy pain syndrome
Learn about post-vasectomy pain syndrome (PVPS) — How it happens after a vasectomy, tests to diagnose it and treatment options.
Delayed ejaculation
Learn what can cause delayed or absent ejaculation and how it can be treated.
Varicocele
Find out how this condition involving the enlargement of veins in the scrotum can affect sperm quality and production.
Breastfeeding positions
Breastfeeding can be awkward at first. Experiment with various positions until you feel comfortable.
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