Introduction: Worldwide, the affected population with erectile dysfunction (ED) is predicted 
to increase from 152 millions in 1995 to 322 millions in 2025. Aim of the work: The aim of 
this study was to assess the impact of improvement of glycosylated hemoglobin on erectile 
function in type II diabetic men with erectile dysfunction. Patient and Methods: This is 
prospective study, which was performed from September 2016 to February 2018 at the 
department of urology at Minia urology and nephrology hospital. Fifty male patients with ED 
included in this study and presented at Andrology Outpatient clinic. Results: The study was 
done at Minia Urology and Nephrology University Hospital, fifty participants were enrolled 
from Andrology outpatient's clinic whose were complaining of erectile dysfunction and 
diagnosed as type II diabetes mellitus more than 5 years duration, all patients under treatment 
for glycemic control.