Question

what would happen if the needle was not sterilized

Answer 1

if the needles would not be sterilised then it can cause AIDS which can be caused due to the contaminated needles or syringes
hope that this will help you friend

Answer 2

Sterilization of needle can help pathogens / microorganisms from entering ur body . And it can stop from spreading of diseases.
If sterilization is not done then diseases spread from one person to another and its very harmful.

Hope it helps u!!