Fertility
Learning Center
Brain AVM (arteriovenous malformation)
Tangled blood vessels in the brain affect typical blood flow in this rare condition. Learn more.
Elective abortion: Does it affect subsequent pregnancies?
Understand if an elective abortion can affect your fertility or future pregnancies.
Female fertility: Why lifestyle choices count
Know what you can do to protect being able to get pregnant.
Fertility preservation: Understand your options before cancer treatment
Know what you can do to preserve your fertility before cancer treatment.
Healthy sperm: Improving your fertility
You can take simple steps to have healthy sperm and improve your fertility.
How to get pregnant
Looking for tips on how to get pregnant? Here's help understanding how to maximize your fertility and when to talk to a doctor.
Keratoconus
When your cornea bulges outward, it can cause blurry vision and make your eyes sensitive to light. Find out about symptoms, causes and treatment for this eye condition.
Narcolepsy
Learn more about this sleep disorder that causes periods of involuntary sleep, sleep paralysis and early rapid eye movement (REM) sleep.
Ovulation signs: When is conception most likely?
Trying to get pregnant? Learn about ovulation signs and symptoms.
Sperm: How long do they live after ejaculation?
After ejaculation, the life span of sperm depends on the circumstances.