Wechat video number live room can talk about health knowledge. It is legal to talk about health knowledge in the live broadcast room of WeChat video number, and WeChat video number is allowed. A micro-signal can create a video number. It is recommended that enterprises and institutions use non-private micro-signals for opening. The WeChat team further introduced that after updating to the latest version of WeChat, users in some cities can see the "Video Number" entry in the "Discovery" of WeChat, and after entering, they can browse short content such as pictures and videos published by different accounts.