Infant health
Learning Center
Frequent sex: Does it protect against prostate cancer?
Some studies have suggested that frequent ejaculation may reduce the risk of prostate cancer. But other research hasn't supported this idea.
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.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
Helping baby sleep through the night
Help your baby sleep through the night.
Hormone therapy for prostate cancer
Find out what to expect during testosterone-blocking therapy. Learn about choices, including medicines and surgery.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
Hypospadias
Hypospadias is a birth defect in which the opening of the urethra is located on the underside of the penis instead of the tip. Learn about treatment.
Infant constipation: How is it treated?
Worried about infant constipation? A Mayo Clinic specialist explains how to treat it.
Infant development: Milestones from 10 to 12 months
Budding curiosity drives infant development between ages 10 and 12 months.
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