A 53-year-old man visits his physician with a complaint of erectile dysfunction

A 53-year-old man visits his physician with a complaint of erectile dysfunction. He is married for 20 years and they have two kids. He had never complained of his sexual performance until last month when he found out that he could not induce a full erection. He has no major health conditions and does not take any medications. He smokes one pack of cigarettes daily for 25 years. He does not drink alcohol or takes recreational drugs.
What is the most likely etiology for this patient’s condition? #usmle #medicine
A-Endocrine
B-Infection
C-Pure psychogenic
D-Trauma
E-Vascular
Answer: http://bit.ly/2JQVaST

His smoking might have led to atherosclerosis of the penile arteries with reduced blood supply to the spongy tissues of the penis, 25years is a long time to smoke a pack per day…

Nicotin Is One Of 5 Substances That Cause Depletion Of Thiamine(vitamin B1) . Its A Vitamin For Nerves. And So The Nerves Linking The Penis Are Not Well Supplied. There’s A Need To Boost The Thiamine Content Of The Body.