<unk>  is the attitude towards<unk>  changes via<unk>  over time, though this attitude depends on the purpose. WWI left thousands of soldiers with unprecedented levels of facial damage, creating a massive need for reconstruction of facial features, as such Harold Gillies of New Zealand developed and tested methods to restore function and structure to the faces of soldiers and these processes rapidly gained popularity. Throughout the 1940s and 50s fashion and personal appearance was emphasized more strongly in the United States. As ideas about what was considered beautiful changed, services, products, and techniques were developed to help consumers meet those standards if they so chose. People may undertake plastic<unk>  in the modern era due to their mental state and lack of confidence in their own bodies. Individuals may turn to getting something changed about themselves via<unk>  because it requires less mental/emotional work and reduces body dysmorphia.
Culture of cosmetic surgery
Cancer staging
Deep clean 
Instruments used in radiology
Instruments used in dermatology
Radiation treatment planning
Ethics of circumcision
Biological specimen