Why is aseptic techniques so critical?

Answer 1

aseptic technique is the procedure in which work is done in microbial free environment and is necessary for the prevention of infections to the human beings e.g. doctor or patient or other hospital workers and to the microbiologist

it is also done for preventing the contamination in microbial culture grown in laboratory

Answer 2

Sepsis refers to the presence of bacteria. So the letter 'a' in front means 'not' and then that gives the medical term of 'not having bacteria' as asepsis, or pertaining to not having bacteria, which is called aseptic.