- C1-INH
- CAD (Coronary Artery Disease)
- Calcaneal Valgus
- Calcium for Osteoporosis
- Calluses and Corns
- Campylobacteriosis
- Canavan Disease
- Cancer
- Cancer of the Tongue
- Cancer Pain
- Canefield Fever
- Canker Sores
- Capsaicin
- Car Seats for Children
- Carbon Monoxide Poisoning
- Carcinoid Apudoma
- Carcinoid Syndrome
- Carpal Tunnel Syndrome
- Cataracts
- Catatonia
- Cats
- Celiac Disease
- Central Precocious Puberty
- Cervical Cancer
- Cervical Ectropion
- CF (Cystic Fibrosis)
- CFS
- CFS (Chronic Fatigue Syndrome)
- CGD -- Growth Delay, Constitutional
- Chagas Disease
- Chalazia
- Chalazion
- Chamomile
- Chanarin Dorfman Disease
- Charcot-Marie-Tooth Disease
- Chelation Therapy
- CHF (Congestive Heart Failure)
- CHH
- Chi Gong
- Chiari-Budd Syndrome
- Chickenpox (Varicella)
- CHIK
- Chilblains
- Child Abuse
- Child Care
- CHILD Naevus
- Childbirth
- Childhood ADHD
- Childhood Cyclic Vomiting
- Childhood Depression
- Childhood Giant Axonal Neuropathy
- Childhood Muscular Dystrophy
- Childhood Obesity
- Children - Childhood Skin Problems Slideshow
- Children's Healthy Eating
- Children's Hygiene
- Children's Vaccines
- Chinese Medicine
- Cholesterol Management
- Chronic Fatigue Syndrome
- Chronic Lymphocytic Leukemia
- Chronic Myeloid Leukemia
- Classic Galactosemia
- Classic Type Pfeiffer Syndrome
- Cleaning and Bandaging a Wound
- Cleft Lip
- Clival Chordoma
- Cloning
- Clostridium Difficile Colitis
- Clubfoot
- Cluster Headaches
- CMTC
- CMV
- Cochlear Implants
- Coenzyme Q10
- Cold
- Cold Agglutinin Disease
- Cold Packs
- Cold Sores
- Colic
- Colitis
- Colitis Gravis
- Colorectal Cancer
- COPD
- Coronavirus (COVID-19)
- Coronavirus (COVID-19), Complicaitons
- Coronavirus (COVID-19) and Asthma
- Coronavirus (COVID-19) and High Blood Pressure
- Coronavirus (COVID-19) and Pregnancy
- Coronavirus (COVID-19) in Children, Infants
- Coronavirus (COVID-19), Recovery
- Coronavirus (COVID-19), Symptoms
- Coronavirus (COVID-19), Testing at Home
- Coronavirus (COVID-19), Testing
- Coronavirus, Types
- COVID-19, Antibody Testing
- CP
- CPR
- Crabs (Pubic Lice)
- Cradle Cap
- Cranial Arteritis
- Craniosynostosis
- Creutzfeldt Jakob Disease
- Crib Death
- Crib Safety
- Cribriform Carcinoma
- Crohn's Disease
- Cross-Eyes (Strabismus)
- Crosti-Gianotti Syndrome
- Croup
- Croup Treatment
- Crow-Fukase Syndrome
- Cryptococcic Meningitis
- Crystal Meth
- Curvature of the Spine (Scoliosis)
- Cutaneous T-Cell Lymphomas
- Cushing's Syndrome
- Cyclic Edema
- Cyclic Migraines
- Cyclist's Syndrome
- Cyprus Fever
- Cystic Fibrosis
- Cystic Fibrosis Carrier Screening
- Cystic Hygroma
- Cystic Lung Disease
- Cysts, Ovarian, Functional
