Wikipedia has wrong information

June 1, 2014

Don’t use Wikipedia for medical information and tell your doctor not to either. It is the most popular reference site not only for the lay public, but also for doctors – anywhere from 47% to 70% of physicians and medical students admit to using it as a reference.

A study just published in a medical journal shows that Wikipedia very often offers erroneous information.The researchers looked at articles on 10 common conditions: coronary artery disease, lung cancer, major depression, concussion, osteoarthritis, chronic obstructive lung disease, hypertension,diabetes, back pain, and hyperlipidemia.

Articles on each condition were evaluated independently by two physicians to make sure that the evaluations were not biased and were consistent between two doctors. The information on Wikipedia was compared to the up-to-date information on these diseases published in scientific medical journals. Shockingly, only information on concussion was accurate, while information on the other nine conditions contained serious errors. This study did not include migraines or other headaches, but it is very likely that at least some information on these conditions are also incorrect.

Tell your doctor about this study, just to make sure that he or she knows about it. For consumers, the best sources of information are medlineplus.com, mayoclinic.org/diseases-conditions, and WebMD.com.

Written by
Alexander Mauskop, MD
Continue reading
December 15, 2025
Alternative Therapies
Could drugs like Ozempic, Saxenda, and Zepbound help migraines?
Could drugs like Ozempic, Saxenda, and Zepbound help migraines? Extra weight often increases migraine headache frequency and makes standard treatments less effective. But a study just published in the journal Headache shows that a medication commonly used for weight loss and diabetes, liraglutide (Saxenda), might offer relief for tough-to-treat migraines in people with obesity.
Read article
November 15, 2025
Cluster headaches
Cluster headaches and solar activity
It was an unusual week at the New York Headache Center. After months of relative calm, my schedule suddenly filled with cluster headache patients—one even consulting me virtually from Saudi Arabia. The influx came right after a G5-level geomagnetic storm, one of the strongest solar events in recent memory.
Read article
November 10, 2025
Alternative Therapies
A Week of Meditation Changes Brains and Bodies
A week-long meditation retreat produces dramatic changes in brain and metabolic functions
Read article