Thanks for your query.Based on the facts that you have posted it appears that you have Grade one Benign Enlargement of Prostate
Since your are 59 years old and have only grade one BEP which can be treated with medication like Urimax .
Surgical option is considered only if you have severe Obstructive or Voiding Symptoms.
Continue with Urimax and monitor your Prostate size by doing Ultrasound
scanning every six months coupled with symptoms.