Diabetic patients who want to improve their sexual function should be treated under doctor’s guidance based on active control of blood sugar and according to the type of sexual dysfunction. You can take glucose-lowering drugs, such as metformin; and treatment of erectile dysfunction, such as sildenafil citrate; treatment of premature ejaculation, such as selective 5-hydroxytryptamine reuptake inhibitors. 1. Glucose-lowering treatment: diabetic patients with poor long-term blood sugar control can develop sexual dysfunction. It should be actively treated to lower sugar, including drugs, diet, exercise combined treatment, drugs including metformin, gliquidone, acarbose and other drugs. 2. Treatment of erectile dysfunction: commonly used is selective phosphodiesterase type 5 inhibitors, including sildenafil citrate, tadalafil hydrochloride, vardenafil hydrochloride and so on. 3. Treatment of premature ejaculation:Oral drugs mainly include selective 5-hydroxytryptamine reuptake inhibitors, type 5 phosphodiesterase inhibitors and other drugs. Diabetic patients with sexual dysfunction should go to the hospital, under the guidance of the doctor treatment.