The main reason why Douyin videos need to be reviewed is to maintain a healthy and orderly network environment. As a short video platform, Douyin users can freely upload, browse and share video content. If there is no review system, there will be a risk of a large amount of vulgar, violent, obscene and other bad content flooding.

These bad contents will not only have a negative impact on society, but also bring a bad audio-visual experience to the majority of users, and even cause harm to the physical and mental health of minors.