Children's health
Learning Center
Vitamin D deficiency
What are the risks of too little vitamin D?
Screen time and children: How to guide your child
Managing your child's screen time takes effort. Find out how to ensure quality screen time and set limits.
Male masturbation: Does frequency affect male fertility?
Male masturbation has little effect on sperm count or quality.
Cast care: Do's and don'ts
Find out more about tips for keeping a cast safe — and your child comfortable — while an injury heals.
Mayo Clinic Minute: What you should know about bats and rabies
Learn more about the risk of rabies from bats and how to prevent rabies.
Mental illness in children: Know the signs
It can be hard to tell the difference between typical behavior and symptoms of mental illness in children. Find out what to look for and when to act.
3rd trimester pregnancy: What to expect
Third trimester pregnancy can bring Braxton Hicks contractions, backaches and hemorrhoids as you await the start of labor.
Bladder cancer
Blood in the urine (hematuria) sometimes is a sign of bladder cancer. Learn about other bladder cancer signs and symptoms and explore treatment options.
Children and gender identity: Supporting your child
Learn how to talk to children about their internal sense of gender. Also find out how to support their gender expression and advocate for them.
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