Explain what is iatrogenic injuries or sequelae of surgical procedures

please explain what is iatrogenic injuries or sequelae of surgical procedures
and discuss and explain why they could or did occur.  Also, find the surgical
procedures for an understanding of
the procedure, ( please describe the surgical procedure step by step to have a better experience of how the surgery is performed.

Although eliminating the practice of collecting and reporting data by race is one option for a response to increasing diversity, another option would be to increase the number of categories used in the collection and reporting of data. Discuss the pros and cons of increasing the number of categories.