A collection of organizations providing health information arranged by topic. Also available in alphabetical order.
C. diff Infections
Caffeine
Calcium
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- Food and Nutrition Information Center
- National Institute of Arthritis and Musculoskeletal and Skin Diseases
- National Institutes of Health, Office of Dietary Supplements
Campylobacter Infections
Cancer
- American Cancer Society
- American Institute for Cancer Research
- American Society of Clinical Oncology
- Livestrong Foundation
- National Cancer Institute
- National Comprehensive Cancer Network
- Oncology Nursing Society
- Patient Advocate Foundation
- University of Texas M.D. Anderson Cancer Center
Cancer Alternative Therapies
- American Cancer Society
- National Cancer Institute
- National Center for Complementary and Integrative Health
- Office of Cancer Complementary and Alternative Medicine
Cancer Chemotherapy
Cancer in Children
Cancer--Living with Cancer
- American Cancer Society
- CancerCare (Cancer Care, Inc.)
- Livestrong Foundation
- National Cancer Institute
- National Coalition for Cancer Survivorship
- Oncology Nursing Society
Canker Sores
Carbohydrate Metabolism Disorders
Carbohydrates
- Academy of Nutrition and Dietetics
- Center for Nutrition Policy and Promotion
- Food and Nutrition Information Center
Carbon Monoxide Poisoning
Carcinoid Tumors
Cardiac Rehabilitation
Cardiomyopathy
- American Heart Association
- Children's Cardiomyopathy Foundation
- Hypertrophic Cardiomyopathy Association
- National Heart, Lung, and Blood Institute
Caregivers
- Caregiver Action Network
- Family Caregiver Alliance
- National Association of Social Workers
- National Institute on Aging
Carotid Artery Disease
Carpal Tunnel Syndrome
- American Academy of Orthopaedic Surgeons
- American Society for Surgery of the Hand
- American Society of Hand Therapists
- National Institute of Neurological Disorders and Stroke
Cartilage Disorders
- American Academy of Orthopaedic Surgeons
- American College of Rheumatology
- American Orthopaedic Society for Sports Medicine
- Arthritis Foundation
- National Institute of Arthritis and Musculoskeletal and Skin Diseases
Cat Scratch Disease
Cataract
Celiac Disease
- Celiac Support Association
- Gluten Intolerance Group
- National Institute of Diabetes and Digestive and Kidney Diseases
- North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition
Cellulitis
Cerebellar Disorders
Cerebral Palsy
- March of Dimes Birth Defects Foundation
- National Institute of Neurological Disorders and Stroke
- United Cerebral Palsy (United Cerebral Palsy Associations)
Cervical Cancer
- American Cancer Society
- American Society for Colposcopy and Cervical Pathology
- National Cancer Institute
Cervical Cancer Screening
- American Cancer Society
- American Society for Colposcopy and Cervical Pathology
- National Cancer Institute
Cervix Disorders
- American College of Obstetricians and Gynecologists
- American Society for Colposcopy and Cervical Pathology
Cesarean Section
Chagas Disease
Charcot-Marie-Tooth Disease
Chemical Emergencies
Chest Injuries and Disorders
Chest Pain
Chiari Malformation
- American Syringomyelia & Chiari Alliance Project
- Conquer Chiari (C&S Patient Education Foundation)
- National Institute of Neurological Disorders and Stroke
Chickenpox
Child Abuse
- Administration for Children and Families
- American Academy of Child and Adolescent Psychiatry
- American Academy of Pediatrics
- Childhelp
- Children's Bureau
- National Runaway Safeline
- Prevent Child Abuse America
Child Behavior Disorders
- American Academy of Child and Adolescent Psychiatry
- American Academy of Pediatrics
- National Institute of Mental Health
Child Dental Health
- Academy of General Dentistry
- American Academy of Oral Medicine
- American Academy of Pediatric Dentistry
- American Association of Oral and Maxillofacial Surgeons
- American Dental Association
- National Institute of Dental and Craniofacial Research
- National Maternal and Child Oral Health Resource Center
Child Development
- American Academy of Child and Adolescent Psychiatry
- American Academy of Pediatrics
- American Board of Pediatrics
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- KidsHealth (Nemours Foundation)
- Nemours Foundation
Child Mental Health
- American Academy of Child and Adolescent Psychiatry
- American Psychiatric Association
- American Psychological Association
- National Association of School Psychologists
- National Child Traumatic Stress Network
- National Institute of Mental Health
Child Nutrition
- Academy of Nutrition and Dietetics
- American Academy of Pediatrics
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- Food and Nutrition Information Center
- Food and Nutrition Service
- KidsHealth (Nemours Foundation)
Child Safety
- American Academy of Pediatrics
- Consumer Product Safety Commission
- National Center for Missing and Exploited Children
- Safe Kids Worldwide
Child Sexual Abuse
- Federal Bureau of Investigation
- National Center for Missing and Exploited Children
- National Runaway Safeline
Childbirth
- American College of Nurse-Midwives
- American College of Obstetricians and Gynecologists
- Commission for the Accreditation of Birth Centers
- Department of Health and Human Services, Office on Women's Health
Childbirth Problems
- American College of Nurse-Midwives
- American College of Obstetricians and Gynecologists
- Department of Health and Human Services, Office on Women's Health
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- March of Dimes Birth Defects Foundation
Childhood Brain Tumors
- American Brain Tumor Association
- American Cancer Society
- Children's Brain Tumor Foundation
- CureSearch for Children's Cancer
- National Cancer Institute
- Pediatric Brain Tumor Foundation
Childhood Leukemia
- American Cancer Society
- American Society of Pediatric Hematology/Oncology
- CureSearch for Children's Cancer
- Leukemia & Lymphoma Society
- National Cancer Institute
- National Marrow Donor Program
Childhood Vaccines
- American Academy of Pediatrics
- Centers for Disease Control and Prevention
- Department of Health and Human Services, Office of Infectious Disease and HIV/AIDS Policy
- Immunization Action Coalition
Children's Health
- American Academy of Pediatrics
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- Federal Interagency Forum on Child and Family Statistics
- KidsHealth (Nemours Foundation)
- Maternal and Child Health Bureau
- Nemours Foundation
- Parents of Kids with Infectious Diseases
- Virtual Pediatric Hospital
Chiropractic
Chlamydia Infections
Choking
Cholera
Cholesterol
Choosing a Doctor or Health Care Service
- Centers for Medicare & Medicaid Services
- Federation of State Medical Boards of the United States
- Joint Commission
- National Institute on Aging
Chronic Bronchitis
- American Association for Respiratory Care
- American Lung Association
- National Heart, Lung, and Blood Institute
- National Jewish Health
Chronic Fatigue Syndrome
Chronic Kidney Disease
- American Kidney Fund
- American Nephrology Nurses' Association
- American Society of Nephrology
- National Institute of Diabetes and Digestive and Kidney Diseases
- National Kidney Disease Education Program
- National Kidney Foundation
Chronic Lymphocytic Leukemia
- American Cancer Society
- Leukemia & Lymphoma Society
- National Cancer Institute
- National Marrow Donor Program
Chronic Myeloid Leukemia
- American Cancer Society
- Leukemia & Lymphoma Society
- National Cancer Institute
- National Marrow Donor Program
Chronic Pain
- American Chronic Pain Association
- National Institute of Neurological Disorders and Stroke
- NIH Pain Consortium
Circumcision
- American Academy of Pediatrics
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
Cirrhosis
- American Gastroenterological Association
- American Liver Foundation
- National Institute of Diabetes and Digestive and Kidney Diseases
Cleaning, Disinfecting, and Sanitizing
- Centers for Disease Control and Prevention
- Environmental Protection Agency
- National Institute of Allergy and Infectious Diseases
Cleft Lip and Palate
- Cleft Palate Foundation
- National Institute of Dental and Craniofacial Research
- National Institute on Deafness and Other Communication Disorders
Climate Change
- Centers for Disease Control and Prevention
- Environmental Protection Agency
- National Institute of Environmental Health Sciences
- U.S. Global Change Research Program
Clinical Trials
Cloning
- American Association for the Advancement of Science
- American Institute of Biological Sciences
- National Human Genome Research Institute
- UNESCO
Club Drugs
Cocaine
Cochlear Implants
Cold and Cough Medicines
Cold Sores
Collapsed Lung
College Health
- American Academy of Pediatrics
- American College Health Association
- Centers for Disease Control and Prevention
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- KidsHealth (Nemours Foundation)
Colonic Diseases
- American Gastroenterological Association
- American Society for Gastrointestinal Endoscopy
- American Society of Colon and Rectal Surgeons
- National Institute of Diabetes and Digestive and Kidney Diseases
Colonic Polyps
- American Cancer Society
- American Society for Gastrointestinal Endoscopy
- National Institute of Diabetes and Digestive and Kidney Diseases
Colonoscopy
- American Gastroenterological Association
- American Society for Gastrointestinal Endoscopy
- National Institute of Diabetes and Digestive and Kidney Diseases
Color Blindness
- American Academy of Ophthalmology
- American Optometric Association
- National Eye Institute
- Prevent Blindness America
Colorectal Cancer
- American Cancer Society
- American Gastroenterological Association
- American Society of Colon and Rectal Surgeons
- Colorectal Cancer Coalition
- National Cancer Institute
Coma
Common Cold
- American Academy of Family Physicians
- American Academy of Pediatrics
- National Institute of Allergy and Infectious Diseases
Common Infant and Newborn Problems
- American Academy of Pediatrics
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- KidsHealth (Nemours Foundation)
Complementary and Integrative Medicine
- American Art Therapy Association
- American Massage Therapy Association
- American Music Therapy Association
- National Center for Complementary and Integrative Health
- National Certification Commission for Acupuncture and Oriental Medicine
Complex Regional Pain Syndrome
Compulsive Gambling
Concussion
Congenital Heart Defects
- Adult Congenital Heart Association
- American Heart Association
- National Heart, Lung, and Blood Institute
Connective Tissue Disorders
- Arthritis Foundation
- National Institute of Arthritis and Musculoskeletal and Skin Diseases
- PXE International, Inc.
Constipation
- American Gastroenterological Association
- American Society of Colon and Rectal Surgeons
- National Institute of Diabetes and Digestive and Kidney Diseases
COPD
- American Association for Respiratory Care
- American College of Chest Physicians
- American Lung Association
- National Heart, Lung, and Blood Institute
Coping with Chronic Illness
Coping with Disasters
- Department of Homeland Security
- Federal Emergency Management Agency
- National Institute of Mental Health
Corneal Disorders
- American Academy of Ophthalmology
- American Foundation for the Blind
- American Optometric Association
- National Eye Institute
Corns and Calluses
- American Academy of Dermatology
- American Podiatric Medical Association
- National Institute of Arthritis and Musculoskeletal and Skin Diseases
Coronary Artery Bypass Surgery
Coronary Artery Disease
Cosmetics
Cough
COVID-19 (Coronavirus Disease 2019)
- Centers for Disease Control and Prevention
- National Institute of Allergy and Infectious Diseases
- World Health Organization
CPR
Craniofacial Abnormalities
- American Academy of Facial Plastic and Reconstructive Surgery
- American Academy of Maxillofacial Prosthetics
- American Association of Oral and Maxillofacial Surgeons
- American Society of Ophthalmic Plastic and Reconstructive Surgery
- Children's Craniofacial Association
- Cleft Palate Foundation
- National Institute of Dental and Craniofacial Research
Creutzfeldt-Jakob Disease
- Centers for Disease Control and Prevention
- Department of Agriculture
- Department of Agriculture, Animal and Plant Health Inspection Service
- Food and Drug Administration
- National Institute of Neurological Disorders and Stroke
Critical Care
- American Association of Critical-Care Nurses
- National Heart, Lung, and Blood Institute
- Society of Critical Care Medicine
Crohn's Disease
- American Gastroenterological Association
- American Society of Colon and Rectal Surgeons
- Crohn's & Colitis Foundation of America
- National Institute of Diabetes and Digestive and Kidney Diseases
Cryptosporidiosis
CT Scans
- American College of Radiology
- American Society of Radiologic Technologists
- Food and Drug Administration
- Radiological Society of North America
Cushing's Syndrome
- Cushing's Support and Research Foundation
- Eunice Kennedy Shriver National Institute of Child Health and Human Development
- National Institute of Diabetes and Digestive and Kidney Diseases
Cystic Fibrosis
- American Association for Respiratory Care
- Cystic Fibrosis Foundation
- National Heart, Lung, and Blood Institute
- National Institute of Diabetes and Digestive and Kidney Diseases