There is no absolute relationship between erectile function and penis size. Erectile dysfunction is mainly caused by psychological and organic factors. Of course, we can’t rule out the possibility that some men have a serious inferiority complex due to their small penis, which in turn affects their erections. Erectile dysfunction refers to the inability to sustain or maintain sufficient hardness to complete sexual intercourse. The most common psychological factors of erectile dysfunction include staying up late at night, stressful life and work, physical fatigue, incompatibility between husband and wife, fear of sex, and the shadow of sex life. The most common organic factors of erectile dysfunction mainly include vascular factors (such as atherosclerosis, arterial injury, arterial stenosis, hypertension, etc.), neurological factors (such as spinal cord lesions, lumbar disc disease, diabetes, uremia, alcoholism, etc.), surgery and trauma. If you have erectile dysfunction, you need to go to the hospital to rule out whether it is caused by psychological or organic factors, and then choose the appropriate treatment plan.