The common causes of erectile dysfunction in men are: i. Inadequate arterial perfusion or the presence of a venous fistula. The presence of mental and psychological factors. Erectile dysfunction can occur due to nerve damage or organic diseases, such as penile fracture, erectile neurovascular bundle damage after prostate surgery, or with cerebral hemorrhage, spinal cord injury, spinal cord amputation, etc. Drugs for treatment: 1. Sildenafil or tadanafil. It can improve the small arteries of the penis and make them expand and cause blood filling to achieve a satisfactory erection, and the efficiency of the treatment is up to 75%. 2. Implantation of penile prosthesis. It can treat erectile dysfunction caused by impaired penile nerve function or organic damage, and use artificial erection to achieve a satisfactory sex life after the placement of prosthesis. 3, Chinese medicine, such as Jin Gui Kidney Pill or Liver Liver Benefit Capsules, etc.