Related Experiment Video
Updated: Jun 30, 2026
Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
Quality and reliability of rectal prolapse short-video content on tiktok and bilibili: A cross-sectional content
Xiaowen Wang1, Zuowu Xi2, Mingliao Niu2
1The Second Clinical Medical College of Henan University of Chinese Medicine, Zhengzhou, China.
Objective:
To evaluate engagement metrics, content coverage, information quality, and reliability of rectal prolapse-related short videos on TikTok and Bilibili, and to assess the influence of uploader type.
Methods:
We conducted a cross-sectional content analysis. Using visitor mode and the default comprehensive ranking algorithm of each platform, two researchers searched for "rectal prolapse" from October 14 to 22, 2025. The first 150 videos per platform were screened, yielding 256 unique eligible videos. Extracted variables included platform, upload date, duration, and engagement metrics (likes, comments, favorites, shares). Video quality and reliability were independently assessed by two colorectal surgeons using the Global Quality Scale (GQS), modified DISCERN (mDISCERN), and the JAMA benchmark; discrepancies were adjudicated by a senior expert.
Results:
TikTok outperformed Bilibili across engagement metrics (all p<0.001); video duration did not differ significantly (p=0.068). Median GQS and JAMA scores were higher on TikTok (both p≤0.001); mDISCERN differences were smaller yet significant (p=0.008). Videos from specialists scored higher on GQS, mDISCERN, and JAMA (all p<0.001). Content emphasized treatment and symptoms, whereas prevention and differential diagnosis were under-covered. Engagement metrics were highly inter-correlated but showed very weak correlations with quality scores.
Conclusions:
Video volume is increasing, whereas overall quality remains moderate. TikTok showed higher engagement and quality than Bilibili. Specialists play a key role in improving content. Platforms should incorporate reliability-weighted ranking signals and promote an essential-elements checklist for patient education.
