I have completed diploma in 2014 after 10th class. but i want to work in medical field. so want i can do
It depends in the brach in which you have done your diploma.Generally the basic criteria for entering medical field through entrance exam includes atleast 50% marks in Physics, Chemistry, Biology in the Board Exams.Since you have done diploma in would suggest you to now move to pharmacy sector and do D.Pharma course and laster B.Pharma.
I hope this helps.