Work experience

I am thinking of doing medicine in Uni , do I need to do more than one work experience to get into university ? Or is one work experience enough ?

It depends how much work experience you did with that one and how much you learnt from it, if it was brief like one afternoon or you didn’t get to learn much then definitely try to get more. If it was extended work experience then one may be ok as long as you have done other things like extra curricular.