Infant and toddler health
Learning Center
Newborn sleep: Should I wake my baby for feedings?
Get the facts about when to wake a sleeping baby for a feeding.
Neuroblastoma
Learn more about the symptoms, diagnosis and treatment of neuroblastoma, one of the most common cancers of childhood.
Mosquito bites
Learn about the many ways to prevent mosquito bites and how to ease the itch if you are bitten.
Mitral valve disease
Learn more about diseases that affect the valve between the left heart chambers, including mitral valve regurgitation and mitral valve stenosis.
Microcephaly
Learn more about microcephaly, when an infant's head is smaller than expected. The condition affects child development.
Metachromatic leukodystrophy
This rare genetic disorder causes fatty substances (sulfatides) to build up in your brain and nervous system, causing progressive loss of nerve function.
Meningitis
Spot the signs and understand the treatment options for meningitis, an infection that has several possible causes.
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.
MCAD deficiency
This inherited genetic disorder prevents the breakdown of certain fats needed for energy, leading to dangerously low blood sugar levels if not treated.
Listeria infection
This foodborne bacterial illness can be very serious for some people. Learn about symptoms, treatment and tips for prevention.
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