Are YouTube videos on cutaneous squamous cell carcinoma a useful and reliable source for patients?

A variety of new treatment options for skin cancer patients drives the need for information and education, which is increasingly met by videos and websites [1, 2]. However, distinguishing between highand low-quality content becomes more difficult as the number of videos increases. Recently, videos addressing patients with melanoma or basal cell carcinoma (BCC) were found to be of predominantly mediocre quality and poor reliability [3, 4]. Until now, no evaluation of videos on cutaneous squamous cell carcinoma (cSCC) has been performed. Furthermore, no patient guideline currently exists for this entity [5–7]. Therefore, we aimed to systematically identify and evaluate videos on cSCC, the worldwide second most common type of skin cancer after BCC [8]. Our results will contribute to shared decision-making and help physicians and patients to select high-quality videos. In April 2021, we conducted a systematic search on www.youtube.com for cSCC videos. The search string included German synonyms of cSCC (Plattenepithelkarzinom, Clinical Letter