Hello,
Do you mean to say that you are having this burning urination since 1983 ? If so you should be more concerned about your kidney than prostate.
This pain can be due to
1.Chronic Urinary tract infection
2.Chronic Cystits (Bladder infection)
3.Chronic Prostate infection (rare)
The chance for a cancer to arise out of your infection (if persisting ) is less. However you should consult a doctor and get some tests - like Kidney functions tests, Urine Culture, and Ultrasongoram of abdomen done.
Thank you