About the quality of YouTube™ videos' on bladder pain syndrome in: “YouTube™ as a source of information on bladder pain syndrome: A contemporary analysis” by Morra et al., Neurourology and Urodynamics 2022;237‐245. https//doi:10.1002/nau.24802

We enjoyed reading the article on exploring the quality of YouTube videos on primary bladder pain syndrome (PBPS) written by Morra et al. and published recently in your journal. PBPS is a chronic debilitating disease with disturbing symptoms and an unclear diagnosis and treatment. With the contribution of the pandemic, the Internet has become a ubiquitous source of health information. YouTube is the world's second most popular website after Google, and visitors spend about 20 min a day on the site. However, the biggest concern is on YouTube videos that hosted videos lack any auditing process, and hence they can be misleading. That is why, in recent years, we see increasing momentum in articles evaluating the contents of the YouTube videos on specific topics, including urologic topics.5–7 In this regard, two articles reviewing YouTube videos on PBPS were recently published. Morra et al. evaluated the first 100 videos that resulted in an anonymous YouTube search using “bladder pain syndrome” term. They used the patient education materials assessment tool for audio–visual content (PEMAT A/V), global quality score (GQS), misinformation tool, and DISCERN (16 questions, long‐form) score tools to evaluate the quality and reliability of the videos. A total of 79 videos were evaluated. The median PEMAT A/V understandability score and PEMAT A/V actionability score were found 66.7% and 75.0%, respectively. According to GQS, 26 (32.9%) of the videos were excellent. The misinformation tool revealed that 81% (n= 64) of the videos gave no misinformation. A positive statistically significant correlation was found between video length and PEMAT A/V understandability (r= 0.27, p= 0.01), video length and PEMAT A/V actionability (r= .26, p= 0.02), and video length and DISCERN Question 16 (r= 0.28, p= 0.01). Again in this study, 79.7% (n= 63), 15.2% (n= 12), and 5.1% (n= 4) of the videos were hosted by healthcare workers, patients, and interviewers, respectively. General public viewers were targeted in 73.4% (n= 58) of the videos. In sum, Morra et al. concluded that the overall quality of YouTube videos on PBPS was good and can be considered a reliable source of information. The other study on evaluating the YouTube videos on PBPS was our study. We first conducted a Google Trends search to understand the patients' real‐life online search tendencies in this study. Google Trends search revealed that people mostly use the term “interstitial cystitis” to describe the disease and less frequently use “primary bladder pain syndrome” and “painful bladder syndrome. ” Thereafter, we similarly evaluated the first 100 videos with the anonymous YouTube querying with each determined definition. One hundred twenty‐five videos were included and in detail, the videos uploaded with the name interstitial cystitis contained much more relevant videos than those uploaded with the terms of PBPS and painful bladder syndrome, 77 (61%), 23 (19%), and 25 (20%), respectively. Failure to search all terms, as was done in the first study, may cause not fully understanding the general framework of YouTube videos on PBPS. In our study, the assessed videos were primarily classified as reliable and nonreliable based on the scientifically proven accurate information they contained. A total of 63 (50.4%) were found nonreliable. There was no significant difference between these two groups (reliable vs. nonreliable) in total view counts (p=0.067), views per day (p=0.63), like counts (p=0.32), dislike counts (p=0.28), comments (p=0.25), and video power index (p=0.24). The videos in the reliable group were found to have longer video lengths (p<0.001). The number of comments was significantly higher in the patient experience group than in the sources of universities/non‐profit physicians or professional organizations, and health information websites. On the basis of these findings, we concluded that