Infant and toddler health
Learning Center
Color blindness
Is it red or is it green? Learn more about what causes color blindness and how to tell whether or not you can distinguish between certain shades of color.
Common warts
Find out tips for preventing and dealing with this common skin condition that causes small, rough growths on your fingers and hands.
Congenital adrenal hyperplasia
This group of inherited genetic conditions limits the adrenal glands' ability to make certain vital hormones.
Congenital heart defects in children
Learn about symptoms, tests and treatments for children born with a problem in the structure of the heart.
Congenital mitral valve anomalies
These heart problems at birth cause the mitral valve to leak or become narrowed. Know the symptoms and treatment.
Congenital myasthenic syndromes
These rare hereditary conditions result in a problem in nerve stimulation, causing muscle weakness that worsens with physical activity.
Constipation in children
Learn what could cause constipation in your child, what you can do to prevent it and treatments that will get the bowel moving again.
Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
Craniopharyngioma
Learn more about this noncancerous tumor that forms near the brain's pituitary gland, including diagnosis and treatment options.
Croup
This upper airway infection makes it harder to breathe and causes a barking cough. It involves swelling around the voice box, windpipe and bronchial tubes.
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