The aim of the study is to know the importance of applying infection control standards in medical laboratories, and the extent to which workers in these laboratories apply these standards, as it shows that these laboratories are keen first on the accuracy of the extracted results and the extent of their reliability or not, and as long as these medical laboratories apply quality standards in infection control, therefore, is trustworthy, its reputation and the reputation of its employees, up to the extent of reassurance of those who deal with it, whether residents or residents of the holy city of Mecca, and whenever quality standards are applied to the fullest extent, they are very close to obtaining the quality standards of CBAHI, joint commission international, or international cap standards. where this questionnaire was distributed to social networking groups (randomly) WhatsApp, where 700 answers were obtained from those (residents of the city of Mecca), out of a total of 600 questionnaires.