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Retractile testicle
Find out about this condition that allows the testicle to move between the scrotum and groin.
Pulmonary atresia with ventricular septal defect
This congenital heart defect affects the valve between the heart and lungs and includes a hole in the heart. Learn the symptoms and how it’s treated.
Mayo Clinic Minute: Are you keeping your child as safe as possible in the car?
Find out how long to use a rear-facing car seat and how it can protect your child.
COVID-19: Long-term effects
Learn about the possible long-term effects of COVID-19.
Blood in semen
Finding blood in your semen can be alarming, but the cause is usually benign. Find out possible causes and when to see a doctor.
Bent penis
Learn what can cause a curved erection and when you may need to see a health care provider.
Aortic valve disease
Learn more about diseases that affect the valve between the heart's main pumping chamber and the body's main artery.
Vaginal agenesis
In this rare condition that occurs before birth, the vagina doesn't develop and the uterus may only develop partially or not at all. Learn about treatment.
Withdrawal method (coitus interruptus)
The withdrawal method — pulling the penis out of the vagina before ejaculation — isn't the most effective birth control. Learn about the pros and cons.
Infant growth: What's normal?
Infant growth rates depend on various factors. Consider what's typical during baby's first year.
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