Why is health literacy important in clinical care?

• A. It has no impact on adherence
• B. It improves patient understanding and adherence
• C. It delays treatment
• D. It increases appointment cancellations

Answer: (B)

Health literacy is the ability to obtain, process, and apply health information to make informed decisions. In clinical care, when patients understand their diagnosis, why tests are done, and how to take medications, they’re more likely to follow the plan, keep follow-up appointments, and voice concerns when something doesn’t fit. This understanding and adherence reduce errors, prevent adverse events, and lead to better health outcomes. Clinicians can support this by using plain language and confirming understanding (teach-back) so explanations match the patient’s level. When health information isn’t understood, instructions can be misinterpreted, doses missed, and care delayed, harming outcomes. So, health literacy matters because it directly promotes understanding and adherence, which are essential for effective care.