What causes erectile dysfunction in males?

Oct 11, 2022 Source: Cainiu Health
Disease description:

My penis is always limp when having sex with my girlfriend. I looked it up online and found this might be erectile dysfunction. What exactly is erectile dysfunction in men?

Doctor's answer (1)
Dr. Li Mingchuan
Male erectile dysfunction may be psychogenic. It is best for both partners to undergo psychological therapy together, which aims to alleviate the patient's anxiety and can generally be conducted under a doctor's guidance. Erectile dysfunction in men may also result from vascular causes; when the penile arteries are narrowed, leading to insufficient blood supply to the corpora cavernosa, erectile dysfunction can occur.