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Childhood asthma
The lungs and airways of children with asthma become inflamed, interfering with daily activities. Some children can have dangerous attacks.
Circumcision (male)
Learn about the benefits and risks of surgery to remove the skin that covers the tip of the penis.
Cleft lip and cleft palate
Surgery can fix openings or splits in the upper lip, or the roof of the mouth (palate), or both types of these birth defects.
Coronary angiogram
Learn more about this heart disease test that uses X-ray imaging to see the heart's blood vessels.
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.
Craniosynostosis
This condition results in premature fusing of one or more of the joints between the bone plates of an infant's skull before the brain is fully formed.
Craniotomy
Learn the brain conditions that are treated with this surgery that involves removing a piece of the skull. Also find out what you can expect during surgery.
Cystoscopy
During cystoscopy, your doctor examines the inside of your bladder using a special instrument that's inserted into the bladder through the urethra.
Dehydration
Dehydration is especially common and dangerous for infants, young children and older adults. Learn more about treating and preventing dehydration.
DiGeorge syndrome (22q11.2 deletion syndrome)
This condition is due to missing part of chromosome 22. It may cause heart issues, thyroid problems, cleft palate, lower immunity and other health problems.
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