Gradual impotence (also known as erectile dysfunction) in 55-year-old men should seek medical attention to identify the causes, which include psychological, neurogenic, vascular, endocrine, diabetic, anatomical, hormonal, and medications. The goal of treatment is to achieve and maintain firm erectile hardness, so as to restore a satisfactory sex life, the way includes general treatment, drug treatment, physical therapy and so on. 1. General treatment: The precautions in life include lifestyle adjustment, quitting smoking and limiting alcohol, increasing sports in moderation, controlling body weight, reasonable diet, and supplementing Omega-3 fatty acids, antioxidants, and calcium in moderation, which can improve vascular endothelial function and erectile function. 2. Medication: The most common method is oral medication, including type 5-phosphodiesterase inhibitors such as sildenafil, tadalafil, etc., testosterone undecanoate, apomorphine, yohimbine, trazodone and so on. 3. Physical therapy: Physical therapy can also be used, including vacuum erection device, low-energy extracorporeal shock wave therapy. 4. Surgery: If general treatment and medication are ineffective, surgery can be chosen to improve erectile dysfunction with penile support implantation. The above drugs should be used under the guidance of a doctor. It is recommended that patients go to regular hospitals in time to seek treatment, and strive for early recovery.