- Acute Flaccid Myelitis
- Alzheimer’s Disease
- Arteriovenous Malformations
- Attention Deficit Hyperactivity Disorder
- Back Pain
- Brain Aneurysm
- Brain Tumors
- Carpal Tunnel Syndrome
- Childhood Brain Tumors
- Delirium
- Dementia
- Hemorrhagic Stroke
- Ischemic Stroke
- Memory
- Meningitis
- Mild Cognitive Impairment
- Movement Disorders
- Multiple Sclerosis
- Neuroblastoma
- Neuromuscular Disorders
- Parkinson’s Disease
- Polio and Post-Polio Syndrome
- Speech and Language Problems in Children
- Stroke
- Transient Ischemic Attack
- Tremor
- Walking Problems
- West Nile Virus
- A1C
- Blood Glucose
- Diabetes
- Diabetes and Pregnancy
- Diabetes Complications
- Diabetes in Children and Teens
- Diabetes Medicines
- Diabetes Type 1
- Diabetes Type 2
- Diabetic Diet
- Diabetic Eye Problems
- Diabetic Foot
- Diabetic Heart Disease
- Diabetic Kidney Problems
- Diabetic Nerve Problems
- How to Prevent Diabetes
- Hyperglycemia
- Metabolic Syndrome
- Prediabetes
- Abortion
- Breast Cancer
- Breast Diseases
- Breast Reconstruction
- Breastfeeding
- Cervical Cancer
- Cervical Cancer Screening
- Cesarean Delivery
- Childbirth
- Ectopic Pregnancy
- Endometriosis
- Female Infertility
- Health Problems in Pregnancy
- High Blood Pressure in Pregnancy
- HIV and Pregnancy
- Hormone Replacement Therapy
- HPV
- Hysterectomy
- Infections and Pregnancy
- Mammography
- Mastectomy
- Menopause
- Menstruation
- Miscarriage
- Ovarian Cancer
- Ovarian Cysts
- Ovarian Disorders
- Pelvic Floor Disorders
- Pelvic Inflammatory Disease
- Pelvic Pain
- Period Pain
- Polycystic Ovary Syndrome
- Pregnancy
- Pregnancy and Drug Use
- Pregnancy and Opioids
- Premenstrual Syndrome
- Prenatal Care
- Prenatal Testing
- Primary Ovarian Insufficiency
- Sexual Problems in Women
- Stillbirth
- Teenage Pregnancy
- Trichomoniasis
- Tubal Ligation
- Uterine Cancer
- Uterine Diseases
- Uterine Fibroids
- Vaginal Bleeding
- Vaginal Cancer
- Vaginal Diseases
- Vaginitis
- Vulvar Cancer
- Vulvar Disorders
- Yeast Infections
- Alcohol
- Calcium
- Child Nutrition
- Cholesterol
- Cholesterol Levels: What You Need to Know
- Cholesterol Medicines
- DASH Eating Plan
- Eating Disorders
- Food Allergy
- HDL: The “Good” Cholesterol
- High Cholesterol in Children and Teens
- How to Lower Cholesterol
- How to Lower Cholesterol with Diet
- Infant and Newborn Nutrition
- LDL: The “Bad” Cholesterol
- Malabsorption Syndromes
- Nutrition for Older Adults
- Pregnancy and Nutrition
- Toddler Nutrition
- Triglycerides
- VLDL Cholesterol
- Alpha-1 Antitrypsin Deficiency
- Ataxia Telangiectasia
- Brain Malformations
- Cerebral Palsy
- Charcot-Marie-Tooth Disease
- Chiari Malformation
- Cleft Lip and Palate
- Color Blindness
- Congenital Heart Defects
- Craniofacial Abnormalities
- Cystic Fibrosis
- Ehlers-Danlos Syndrome
- Fetal Alcohol Spectrum Disorders
- Friedreich Ataxia
- Genetic Counseling
- Hemophilia
- Huntington’s Disease
- Hydrocephalus
- Muscular Dystrophy
- Neural Tube Defects
- Neurofibromatosis
- Newborn Screening
- Osteogenesis Imperfecta
- Prader-Willi Syndrome
- Pregnancy and Medicines
- Rett Syndrome
- Sickle Cell Disease
- Spina Bifida
- Spinal Muscular Atrophy
- Tay-Sachs Disease
- Tourette Syndrome
- Tuberous Sclerosis
- Usher Syndrome
- Acute Lymphocytic Leukemia
- Allergy
- Animal Bites
- Ankylosing Spondylitis
- Aplastic Anemia
- Asthma
- Asthma in Children
- Childhood Leukemia
- Childhood Vaccines
- Chronic Lymphocytic Leukemia
- COVID-19 Vaccines
- Cryptosporidiosis
- Eosinophilic Disorders
- Eosinophilic Esophagitis
- Giant Cell Arteritis
- Hay Fever
- HIV
- HIV and Infections
- HIV in Women
- Hodgkin Lymphoma
- Infectious Diseases
- Infectious Mononucleosis
- Juvenile Arthritis
- Kawasaki Disease
- Lymphedema
- Lymphoma
- Multiple Myeloma
- Pemphigus
- Pneumocystis Infections
- Rheumatoid Arthritis
- Scleroderma
- Sjogren’s Syndrome
- Tonsillitis
- Vaccines
- Viral Infections
- Adhesions
- Ankle Injuries and Disorders
- Arm Injuries and Disorders
- Back Injuries
- Brachial Plexus Injuries
- Burns
- Chest Injuries and Disorders
- Concussion
- CPR
- Dislocated Shoulder
- Dislocations
- Elbow Injuries and Disorders
- Eye Injuries
- Facial Injuries and Disorders
- Finger Injuries and Disorders
- Foot Injuries and Disorders
- Fractures
- Hand Injuries and Disorders
- Heel Injuries and Disorders
- Hip Injuries and Disorders
- Inhalation Injuries
- Insect Bites and Stings
- Jaw Injuries and Disorders
- Knee Injuries and Disorders
- Leg Injuries and Disorders
- Mosquito Bites
- Neck Injuries and Disorders
- Rotator Cuff Injuries
- Shoulder Injuries and Disorders
- Spinal Cord Injuries
- Sprains and Strains
- Tick Bites
- Toe Injuries and Disorders
- Traumatic Brain Injury
- Wrist Injuries and Disorders
- Acute Bronchitis
- Bird Flu
- Chronic Bronchitis
- COPD
- COVID-19 (Coronavirus Disease 2019)
- Croup
- E-Cigarettes
- Fistulas
- Flu
- Granulomatosis with Polyangiitis
- H1N1 Flu (Swine Flu)
- Legionnaires’ Disease
- Lung Cancer
- Mesothelioma
- Pneumonia
- Pulmonary Hypertension
- Respiratory Syncytial Virus Infections
- Sleep Apnea
- Smoking
- Tuberculosis
- Whooping Cough
- Anatomy
- Assisted Reproductive Technology
- Birth Control
- Chlamydia Infections
- Circumcision
- Erectile Dysfunction
- Genital Herpes
- Genital Warts
- Gonorrhea
- Herpes Simplex
- Infertility
- Male Infertility
- Penis Disorders
- Prostate Cancer
- Prostate Cancer Screening
- Prostate Diseases
- Reproductive Hazards
- Sexual Health
- Sexual Problems in Men
- Sexually Transmitted Diseases
- Syphilis
- Testicular Cancer
- Testicular Disorders
- Vasectomy
- Abdominal Pain
- Bad Breath
- Bleeding
- Breathing Problems
- Bruises
- Chest Pain
- Choking
- Chronic Pain
- Constipation
- Cough
- Diarrhea
- Dizziness and Vertigo
- Edema
- Fainting
- Fever
- Frostbite
- Gas
- Gastrointestinal Bleeding
- Headache
- Heartburn
- Heat Illness
- Hives
- Hypothermia
- Indigestion
- Itching
- Jaundice
- Nausea and Vomiting
- Pain
- Rare Diseases
- Raynaud’s Disease
- Sciatica
- Speech and Communication Disorders
- Stuttering
Evaluating Health Information
Summary
Why do I need to evaluate health information?
Health information is easy to find. But finding reliable health information takes a little effort. Some of the health information you get from newspapers, magazines, books, TV, the Internet, and social media is up to date and trustworthy. But some is not. That’s why it’s important to evaluate health information for yourself.
But how can you tell the good from the bad? There are two key steps:
- Ask questions before you trust what you read or hear.
- Discuss the information you find with your health care provider before you rely on it. You may have found good information, but your provider can tell you whether it’s good for you.
How can I evaluate health information on the Internet?
Asking a few questions will help you decide if you can trust a website. You can usually find most of the answers on the site’s “About Us” page. If you can’t find information about who runs the website, the site may not be trustworthy, and their health information may be unreliable. Some questions to ask are:
- Who runs the site? Can you trust them to provide balanced, accurate information? Trustworthy sites provide a way to contact the owners with questions or feedback.
In general, you’ll find good health information on websites run by:
- Federal government agencies.
- Medical schools.
- Large professional or nonprofit organizations. For example, the American College of Cardiology (a professional organization) and the American Heart Association (a nonprofit) and are both reliable sources of information on heart health.
- What’s the purpose of the site? Is it to:
- Inform the public?
- Sell products or services?
- Promote the opinions of a person or group?
A trustworthy website has one goal: To give you good information.
- Who pays for the site?
- If the site is funded by ads, they should be clearly marked as advertisements. Watch out for ads designed to look like neutral health information.
- If a business pays for the site, the health information may favor that business and its products.
- Is the health information high quality? Good health information doesn’t promote one treatment over another. It gives you balanced facts based on research. So, beware of dramatic writing, promises of cures, and claims that sound too good to be true. Those could be signs of a health fraud scam. To evaluate the quality of a website’s information, ask:
- How is the information selected and reviewed to make sure it’s accurate?
Check the “About Us” page to see if the site has:- An editorial board of health experts
- A content review process
- A selection policy for content
- Information about their writers’ qualifications, which may be listed at the bottom of the articles
- Where does the information come from? The content pages should have links or references to the sources of the information.
- Is the information up to date? Content pages should include dates when the information was written, reviewed, or updated.
- How is the information selected and reviewed to make sure it’s accurate?
- How does the website use your personal information? Look for a privacy policy section to see how your personal information will be used. Don’t share information about yourself unless you’re comfortable with any risks involved.
When you find a website that seems to be trustworthy, don’t stop there. Look to see if other reliable sites have similar health information.
How can I evaluate health information on social media?
A social media post may come from someone you know, but that doesn’t guarantee it’s good information. Many of the questions you use to evaluate a website also work for social media too. Ask where the information comes from, why it exists, and if anyone is funding it.
If you’re not sure whether the information you see on social media is trustworthy, don”t share it with others.
How can I evaluate health stories in the news?
Some news stories about medical research may not include all the facts you need to know. Ask these questions:
- Does the story say whether the research involved people or animals?
- If it was people, how many people were in the study and who were they?
- How long was the study?
- What type of study was it?
- Who paid for the research?
If you learn a few tips for understanding medical research, you’ll be able to decide if a news story may apply to your health. Then you can discuss the information with your provider.
How can I evaluate health information in books?
To evaluate health information in books, ask:
- How old is the book?
- Is the author an expert on the subject?
- Does the book offer different points of view or just those of the author?
- Has the book been reviewed by other experts?
- Does the book list the sources of the content?
After you evaluate health information, talk with your provider before using it to make decisions that may affect your health.
NIH: National Library of Medicine
National Library of Medicine
Start Here
- Community Toolkit for Addressing Health Misinformation Surgeon General
- Evaluating Internet Health Information: A Tutorial from the National Library of Medicine National Library of Medicine
- Finding and Evaluating Online Resources National Center for Complementary and Integrative Health
- Health Information on the Web: Finding Reliable Information American Academy of Family Physicians
Specifics
- Diet in the News — What to Believe? Harvard School of Public Health
- Finding Cancer Information on the Internet American Cancer Society
- Finding Reliable Health Information Online National Human Genome Research Institute
- How to Find Cancer Resources You Can Trust National Cancer Institute
- Know the Science: The Facts about Health News Stories National Center for Complementary and Integrative Health
Related Issues
- Health Literacy: MedlinePlus Health Topic National Library of Medicine
- How to Spot Health Fraud Food and Drug Administration
- Rumor Control: Learn and Share FDA Facts Food and Drug Administration
- Understanding Health Risks: Improve Your Chances for Good Health National Institutes of Health
Patient Handouts
- Health Misinformation Checklist Surgeon General
- Online health information – what can you trust? Medical Encyclopedia
- Talk to Your Community about Health Misinformation Surgeon General
Older Adults
- How to Find Reliable Health Information Online National Institute on Aging
Find an Expert
- National Library of Medicine National Library of Medicine