What is a key reason to assess online medical information critically, such as posts on social media?

• A. They are always biased
• B. They may be biased or inaccurate
• C. They are peer-reviewed
• D. They are always incorrect

Answer: (B)

Evaluating online medical information hinges on recognizing that it can be biased or inaccurate. Posts on social media come from a wide range of sources, not all with medical training or rigorous methods, and some content reflects personal experience, marketing, or misinterpretation of research. Because health decisions can have real consequences, it’s important to question credibility, check the evidence, and verify with trusted sources or peer‑reviewed guidelines. That’s why the best answer notes that online medical information may be biased or inaccurate.

Other statements aren’t as accurate: some posts aren’t biased at all, and not all are incorrect; many are not peer‑reviewed; and it’s incorrect to claim they are always biased or always incorrect.