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Constipation
Learn how to prevent and treat infrequent or painful passing of stool.
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.
Crohn's disease
Learn about symptoms and treatment for this debilitating, but treatable, digestive condition.
Cyclic vomiting syndrome
Cyclic vomiting syndrome often starts in childhood and is marked by spells of vomiting several times an hour over a period of hours or days.
Cystic fibrosis
This inherited condition causes severe damage to the lungs, digestive system and other organs. Learn about improvements in screening and treatments.
Cytomegalovirus (CMV) infection
Understand the symptoms and treatment of this common viral infection that can cause health problems for babies and people who have weakened immunity.
Diabetic neuropathy
High blood sugar can lead to nerve damage in feet and other areas of the body. Know the signs and how to take steps to prevent this diabetes complication.
Diarrhea
Learn more about what causes this common, unpleasant digestive condition, and how you can treat and prevent it.
Diverticulitis
This common colon disease develops when small pouches form in the colon wall and become inflamed, causing pain, fever and abnormal stool function.
Down syndrome
Down syndrome is a genetic disorder caused when abnormal cell division results in extra genetic material from chromosome 21.
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