- Caffeine
- California Achievement Tests
- Cancer
- Candidiasis
- Canker Sores
- Carbohydrate Intolerance
- Carbon Monoxide Poisoning
- Cardiopulmonary Resuscitation
- Cat-Scratch Disease
- Celiac Disease
- Cerebral Palsy
- Cerebrospinal Fluid (CSF) Analysis
- Cerumen Impaction
- Cesarean Section
- Charcot-Marie-Tooth Disease
- Chemotherapy
- Chest Physical Therapy
- Chiari Malformation
- Chickenpox
- Chickenpox Vaccine
- Child Abuse
- Child Custody Laws
- Childbirth
- Childhood Vaccine Injury Act
- Childproofing
- Children's Apperception Test
- Choking
- Cholesterol, High
- Circumcision
- Cleft Lip and Palate
