What can lead to, or is associated with erectile dysfunction?

The following cause or are associated with Erectile dysfunction:: Anatomic penile abnormalities, Chronic inflammatory demyelinating polyneuropathy, Hemochromatosis, Hypogonadism, Hypopituitarism, Low blood pressure on standing, Nonfunctional pituitary adenoma, Paroxysmal nocturnal hemoglobinuria, Peripheral vascular disease, Pituitary tumor, Sleep apnea, Steroid use, Diabetic nerve problems, Lambert Eaton myasthenic syndrome, High cholesterol, High blood pressure, Familial hypercholesterolemia, Low testosterone, Dysautonomia, Hyperlipidemia.