Health information-seeking behaviour (HISB), also known as health information seeking, health seeking behaviour or health information behaviour, refers to how people look for information about health and illness. HISB is a key strategy for many people to understand their health problems and to cope with illness. Recently, thanks to the development of the technologies and networks, people have a trend of seeking health information on the Internet. Particularly, when it comes to the following scenarios, people tend to carry out online HISB:Encountering health issues Received conflicting information The cause is relevant to known people Out of curiosity