The most common organic causes of organic nature are:
A. Abnormal penis anatomy: short penis, bent penis, abnormal penis position (penis behind the scrotum), penis deformity (double penis), testicular fibrosis. And penis trauma, penis fracture, etc.
B. Respiratory and circulatory system: respiratory failure, myocardial infarction, etc.
C. Disease: Hodgkin's disease, acute and chronic, malignant, etc.
D. Endocrine system diseases: diseases, adrenal insufficiency, hypothyroidism, testicular dysplasia, pituitary lesions, hyperthyroidism, etc.
E. Vascular diseases: arteritis, symptoms, etc.
F. Nervous system diseases: muscular atrophy of lateral sclerosis, Parkinson's disease, peripheral neuritis, temporal lobe disease, brain and spinal cord injury or compression or deformity, etc.
G. Genital diseases:, seminal vesiculitis, epididymitis, seminal vesiculitis, epididymitis, cystectomy, perineum or prostatectomy, cavernous sclerosis of penis, phimosis, persistent erection of penis (cavernous fibrosis of penis), etc.
H. Infectious diseases: tuberculosis of the reproductive system, combined orchitis, etc.
I. Drugs: drug addiction, alcohol, a-methyldopa, atropine, barbiturates, liminine, cimetidine, guanidine, marijuana leaf, Dianbenxin, phenthiazide, propranolol, reserpine, spironolactone, dihydroxyurea.
J. Other diseases:, obesity, (knot, herbicide), etc.